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   <div id="projectname">ADC
   &#160;<span id="projectnumber">9.2</span>
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   <div id="projectbrief">Analog to Digital Conversor library for the Teensy 3.5 microprocessor</div>
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<div class="title">ADC_Module.cpp</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* Teensy 4.x, 3.x, LC ADC library</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * https://github.com/pedvide/ADC</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (c) 2020 Pedro Villanueva</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * a copy of this software and associated documentation files (the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * &quot;Software&quot;), to deal in the Software without restriction, including</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * without limitation the rights to use, copy, modify, merge, publish,</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * distribute, sublicense, and/or sell copies of the Software, and to</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * permit persons to whom the Software is furnished to do so, subject to</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * the following conditions:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * included in all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">/* ADC_Module.cpp: Implements the fuctions of a Teensy 3.x, LC ADC module</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;ADC_Module.h&quot;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160; </div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">// include the internal reference</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#ifdef ADC_USE_INTERNAL_VREF</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;VREF.h&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">/* Constructor</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">*   Point the registers to the correct ADC module</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">*   Copy the correct channel2sc1a</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">*   Call init</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ac1ebe515d43edd360286c3a3a44db5b8">   42</a></span>&#160;<a class="code" href="class_a_d_c___module.html#ac1ebe515d43edd360286c3a3a44db5b8">ADC_Module::ADC_Module</a>(uint8_t ADC_number,</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;                       <span class="keyword">const</span> uint8_t *<span class="keyword">const</span> a_channel2sc1a,</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;#<span class="keywordflow">if</span> ADC_DIFF_PAIRS &gt; 0</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;                       <span class="keyword">const</span> ADC_NLIST *<span class="keyword">const</span> a_diff_table,</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;#endif</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                       ADC_REGS_t &amp;a_adc_regs) : ADC_num(ADC_number), channel2sc1a(a_channel2sc1a)</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;#if ADC_DIFF_PAIRS &gt; 0</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;                                                 ,</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;                                                 diff_table(a_diff_table)</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;#endif</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;                                                 ,</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;                                                 adc_regs(a_adc_regs)</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;#ifdef ADC_USE_PDB</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;                                                 ,</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;                                                 PDB0_CHnC1(ADC_num ? PDB0_CH1C1 : PDB0_CH0C1)</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;#endif</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;#if defined(ADC_TEENSY_4)</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;                                                 ,</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                                                 XBAR_IN(ADC_num ? XBARA1_IN_QTIMER4_TIMER3 : XBARA1_IN_QTIMER4_TIMER0), XBAR_OUT(ADC_num ? XBARA1_OUT_ADC_ETC_TRIG10 : XBARA1_OUT_ADC_ETC_TRIG00), QTIMER4_INDEX(ADC_num ? 3 : 0), ADC_ETC_TRIGGER_INDEX(ADC_num ? 4 : 0), IRQ_ADC(ADC_num ? IRQ_NUMBER_t::IRQ_ADC2 : IRQ_NUMBER_t::IRQ_ADC1)</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;#elif defined(ADC_DUAL_ADCS)</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                                                 <span class="comment">// IRQ_ADC0 and IRQ_ADC1 aren&#39;t consecutive in Teensy 3.6</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                                                 <span class="comment">// fix by SB, https://github.com/pedvide/ADC/issues/19</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                                                 ,</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;                                                 IRQ_ADC(ADC_num ? IRQ_NUMBER_t::IRQ_ADC1 : IRQ_NUMBER_t::IRQ_ADC0)</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;#else</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;                                                 ,</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;                                                 IRQ_ADC(IRQ_NUMBER_t::IRQ_ADC0)</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;#endif</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;{</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="comment">// call our init</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    analog_init();</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;}</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">/* Initialize stuff:</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">*  - Switch on clock</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">*  - Clear all fail flags</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">*  - Internal reference (default: external vcc)</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment">*  - Mux between a and b channels (b channels)</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment">*  - Calibrate with 32 averages and low speed</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">*  - When first calibration is done it sets:</span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">*     - Resolution (default: 10 bits)</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment">*     - Conversion speed and sampling time (both set to medium speed)</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">*     - Averaging (set to 4)</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="keywordtype">void</span> ADC_Module::analog_init()</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;{</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    startClock();</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="comment">// default settings:</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="comment">        - 10 bits resolution</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment">        - 4 averages</span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">        - vcc reference</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">        - no interrupts</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">        - pga gain=1</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">        - conversion speed = medium</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">        - sampling speed = medium</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment">    initiate to 0 (or 1) so the corresponding functions change it to the correct value</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">    */</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    analog_res_bits = 0;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    analog_max_val = 0;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    analog_num_average = 0;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    analog_reference_internal = ADC_REF_SOURCE::REF_NONE;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="preprocessor">#ifdef ADC_USE_PGA</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    pga_value = 1;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    interrupts_enabled = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="comment">// overwrite old values if a new conversion ends</span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    atomic::setBitFlag(adc_regs.CFG, ADC_CFG_OVWREN);</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">// this is the only option for Teensy 3.x and LC</span></div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    conversion_speed = ADC_CONVERSION_SPEED::HIGH_SPEED; <span class="comment">// set to something different from line 139 so it gets changed there</span></div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    sampling_speed = ADC_SAMPLING_SPEED::VERY_HIGH_SPEED;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    calibrating = 0;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> = ADC_ERROR::CLEAR; <span class="comment">// clear all errors</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160; </div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a> = 0;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160; </div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="comment">// select b channels</span></div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="comment">// T4 has no a or b channels</span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="comment">// ADC_CFG2_muxsel = 1;</span></div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_MUXSEL);</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160; </div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="comment">// set reference to vcc</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <a class="code" href="class_a_d_c___module.html#a784d946712d1d0ee475822b7b8f99ace">setReference</a>(ADC_REFERENCE::REF_3V3);</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160; </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="comment">// set resolution to 10</span></div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    <a class="code" href="class_a_d_c___module.html#a6bd8da02e5e9bd3b2b3db30d5faa3585">setResolution</a>(10);</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; </div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="comment">// the first calibration will use 32 averages and lowest speed,</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <span class="comment">// when this calibration is over the averages and speed will be set to default by wait_for_cal and init_calib will be cleared.</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    init_calib = 1;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <a class="code" href="class_a_d_c___module.html#a55954618c5c27c1ffce4321e912bac52">setAveraging</a>(32);</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="class_a_d_c___module.html#a281b4f6ca2705f934bc86b1a25679138">setConversionSpeed</a>(ADC_CONVERSION_SPEED::LOW_SPEED);</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <a class="code" href="class_a_d_c___module.html#a2aa4693c5be479f3189d31f59d212509">setSamplingSpeed</a>(ADC_SAMPLING_SPEED::LOW_SPEED);</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    <span class="comment">// begin init calibration</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    <a class="code" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">calibrate</a>();</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;}</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160; </div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="comment">// starts calibration</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">  153</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">ADC_Module::calibrate</a>()</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;{</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    __disable_irq();</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160; </div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    calibrating = 1;</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    atomic::clearBitFlag(adc_regs.GC, ADC_GC_CAL);</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    atomic::setBitFlag(adc_regs.GS, ADC_GS_CALF);</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    atomic::setBitFlag(adc_regs.GC, ADC_GC_CAL);</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="comment">// ADC_SC3_cal = 0; // stop possible previous calibration</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    atomic::clearBitFlag(adc_regs.SC3, ADC_SC3_CAL);</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    <span class="comment">// ADC_SC3_calf = 1; // clear possible previous error</span></div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    atomic::setBitFlag(adc_regs.SC3, ADC_SC3_CALF);</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    <span class="comment">// ADC_SC3_cal = 1; // start calibration</span></div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    atomic::setBitFlag(adc_regs.SC3, ADC_SC3_CAL);</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160; </div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;}</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160; </div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="comment">/* Waits until calibration is finished and writes the corresponding registers</span></div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">  178</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">ADC_Module::wait_for_cal</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;{</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160; </div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment">// wait for calibration to finish</span></div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    <span class="keywordflow">while</span> (atomic::getBitFlag(adc_regs.GC, ADC_GC_CAL))</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    { <span class="comment">// Bit ADC_GC_CAL in register GC cleared when calib. finishes.</span></div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        yield();</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    <span class="keywordflow">if</span> (atomic::getBitFlag(adc_regs.GS, ADC_GS_CALF))</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    {                                  <span class="comment">// calibration failed</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::CALIB; <span class="comment">// the user should know and recalibrate manually</span></div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    }</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    <span class="keywordflow">while</span> (atomic::getBitFlag(adc_regs.SC3, ADC_SC3_CAL))</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    { <span class="comment">// Bit ADC_SC3_CAL in register ADC0_SC3 cleared when calib. finishes.</span></div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        yield();</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    }</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    <span class="keywordflow">if</span> (atomic::getBitFlag(adc_regs.SC3, ADC_SC3_CALF))</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    {                                  <span class="comment">// calibration failed</span></div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::CALIB; <span class="comment">// the user should know and recalibrate manually</span></div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    }</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160; </div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;<span class="comment">// set calibrated values to registers</span></div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="comment">// T4 does not require anything else for calibration</span></div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    __disable_irq();</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    uint16_t sum;</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    {</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;        sum = adc_regs.CLPS + adc_regs.CLP4 + adc_regs.CLP3 + adc_regs.CLP2 + adc_regs.CLP1 + adc_regs.CLP0;</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;        sum = (sum / 2) | 0x8000;</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;        adc_regs.PG = sum;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160; </div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;        sum = adc_regs.CLMS + adc_regs.CLM4 + adc_regs.CLM3 + adc_regs.CLM2 + adc_regs.CLM1 + adc_regs.CLM0;</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;        sum = (sum / 2) | 0x8000;</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        adc_regs.MG = sum;</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    }</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    calibrating = 0;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160; </div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;    <span class="comment">// the first calibration uses 32 averages and lowest speed,</span></div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <span class="comment">// when this calibration is over, set the averages and speed to default.</span></div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    <span class="keywordflow">if</span> (init_calib)</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    {</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160; </div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;        <span class="comment">// set conversion speed to medium</span></div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;        <a class="code" href="class_a_d_c___module.html#a281b4f6ca2705f934bc86b1a25679138">setConversionSpeed</a>(ADC_CONVERSION_SPEED::MED_SPEED);</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160; </div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;        <span class="comment">// set sampling speed to medium</span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2aa4693c5be479f3189d31f59d212509">setSamplingSpeed</a>(ADC_SAMPLING_SPEED::MED_SPEED);</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160; </div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        <span class="comment">// number of averages to 4</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;        <a class="code" href="class_a_d_c___module.html#a55954618c5c27c1ffce4321e912bac52">setAveraging</a>(4);</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160; </div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        init_calib = 0; <span class="comment">// clear</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    }</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;}</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160; </div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160; </div>
<div class="line"><a name="l00244"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#afe8ed6f2a6c811ec3ef2c4aba768982f">  244</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#afe8ed6f2a6c811ec3ef2c4aba768982f">ADC_Module::recalibrate</a>()</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;{</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160; </div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;    <a class="code" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">calibrate</a>();</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160; </div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;}</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160; </div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160; </div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;<span class="comment">/* Set the voltage reference you prefer, default is 3.3V</span></div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;<span class="comment">*   It needs to recalibrate</span></div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;<span class="comment">*  Use ADC_REF_3V3, ADC_REF_1V2 (not for Teensy LC) or ADC_REF_EXT</span></div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a784d946712d1d0ee475822b7b8f99ace">  258</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a784d946712d1d0ee475822b7b8f99ace">ADC_Module::setReference</a>(<a class="code" href="namespace_a_d_c__settings.html#a5f42fd9e070e88475ec7cee39bbf4f8d">ADC_REFERENCE</a> type)</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;{</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    ADC_REF_SOURCE ref_type = <span class="keyword">static_cast&lt;</span>ADC_REF_SOURCE<span class="keyword">&gt;</span>(type); <span class="comment">// cast to source type, that is, either internal or default</span></div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160; </div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;    <span class="keywordflow">if</span> (analog_reference_internal == ref_type)</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    { <span class="comment">// don&#39;t need to change anything</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    }</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160; </div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    <span class="keywordflow">if</span> (ref_type == ADC_REF_SOURCE::REF_ALT)</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    { <span class="comment">// 1.2V ref for Teensy 3.x, 3.3 VDD for Teensy LC</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="comment">// internal reference requested</span></div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="preprocessor">#ifdef ADC_USE_INTERNAL_VREF</span></div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;        <a class="code" href="namespace_v_r_e_f.html#a569b07fd4d9cba8e5c6cb170b952c7ef">VREF::start</a>(); <span class="comment">// enable VREF if Teensy 3.x</span></div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;        analog_reference_internal = ADC_REF_SOURCE::REF_ALT;</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160; </div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="comment">// No REF_ALT for T4</span></div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        <span class="comment">// *ADC_SC2_ref = 1; // uses bitband: atomic</span></div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;        atomic::setBitFlag(adc_regs.SC2, ADC_SC2_REFSEL(1));</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    }</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ref_type == ADC_REF_SOURCE::REF_DEFAULT)</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;    {   <span class="comment">// ext ref for all Teensys, vcc also for Teensy 3.x</span></div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;        <span class="comment">// vcc or external reference requested</span></div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160; </div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;<span class="preprocessor">#ifdef ADC_USE_INTERNAL_VREF</span></div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;        <a class="code" href="namespace_v_r_e_f.html#ac667e62e25fd2c9325f73dd0c6a6a3e8">VREF::stop</a>(); <span class="comment">// disable 1.2V reference source when using the external ref (p. 102, 3.7.1.7)</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160; </div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;        analog_reference_internal = ADC_REF_SOURCE::REF_DEFAULT;</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160; </div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_REFSEL(3));</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;        <span class="comment">// *ADC_SC2_ref = 0; // uses bitband: atomic</span></div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;        atomic::clearBitFlag(adc_regs.SC2, ADC_SC2_REFSEL(1));</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    }</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160; </div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <a class="code" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">calibrate</a>();</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;}</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160; </div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;<span class="comment">/* Change the resolution of the measurement</span></div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="comment">*  For single-ended measurements: 8, 10, 12 or 16 bits.</span></div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;<span class="comment">*  For differential measurements: 9, 11, 13 or 16 bits.</span></div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="comment">*  If you want something in between (11 bits single-ended for example) select the inmediate higher</span></div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;<span class="comment">*  and shift the result one to the right.</span></div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;<span class="comment">*  It doesn&#39;t recalibrate</span></div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a6bd8da02e5e9bd3b2b3db30d5faa3585">  312</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a6bd8da02e5e9bd3b2b3db30d5faa3585">ADC_Module::setResolution</a>(uint8_t bits)</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;{</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160; </div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;    <span class="keywordflow">if</span> (analog_res_bits == bits)</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;    {</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;    }</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160; </div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    uint8_t config;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160; </div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160; </div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;    <span class="keywordflow">if</span> (bits &lt;= 9)</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;    {</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;        config = 8;</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    }</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bits &lt;= 11)</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;    {</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;        config = 10;</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    }</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bits &gt; 11)</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;    {</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;        config = 12;</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;    }</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bits &lt;= 13)</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;    {</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;        config = 12;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;    }</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bits &gt; 13)</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    {</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;        config = 16;</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    }</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    {</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;        config = 8; <span class="comment">// default to 8 bits</span></div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;    }</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160; </div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    <span class="comment">// conversion resolution</span></div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    <span class="comment">// single-ended 8 bits is the same as differential 9 bits, etc.</span></div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;    <span class="keywordflow">if</span> ((config == 8) || (config == 9))</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    {</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_MODE(3));</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;        <span class="comment">// *ADC_CFG1_mode1 = 0;</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;        <span class="comment">// *ADC_CFG1_mode0 = 0;</span></div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_MODE(3));</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;        analog_max_val = 255; <span class="comment">// diff mode 9 bits has 1 bit for sign, so max value is the same as single 8 bits</span></div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;    }</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((config == 10) || (config == 11))</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    {</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_MODE(3), ADC_CFG_MODE(1));</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        <span class="comment">// *ADC_CFG1_mode1 = 1;</span></div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;        <span class="comment">// *ADC_CFG1_mode0 = 0;</span></div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;        atomic::changeBitFlag(adc_regs.CFG1, ADC_CFG1_MODE(3), ADC_CFG1_MODE(2));</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;        analog_max_val = 1023;</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    }</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((config == 12) || (config == 13))</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;    {</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_MODE(3), ADC_CFG_MODE(2));</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;        <span class="comment">// *ADC_CFG1_mode1 = 0;</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;        <span class="comment">// *ADC_CFG1_mode0 = 1;</span></div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;        atomic::changeBitFlag(adc_regs.CFG1, ADC_CFG1_MODE(3), ADC_CFG1_MODE(1));</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;        analog_max_val = 4095;</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;    }</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;    {</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="comment">// Impossible for T4</span></div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;        <span class="comment">// *ADC_CFG1_mode1 = 1;</span></div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;        <span class="comment">// *ADC_CFG1_mode0 = 1;</span></div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_MODE(3));</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;        analog_max_val = 65535;</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    }</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160; </div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    analog_res_bits = config;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160; </div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;    <span class="comment">// no recalibration is needed when changing the resolution, p. 619</span></div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;}</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160; </div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;<span class="comment">/* Returns the resolution of the ADC</span></div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a58cabc09d41f6aa25319fd514b47c48f">  408</a></span>&#160;uint8_t <a class="code" href="class_a_d_c___module.html#a58cabc09d41f6aa25319fd514b47c48f">ADC_Module::getResolution</a>()</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;{</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;    <span class="keywordflow">return</span> analog_res_bits;</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;}</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160; </div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="comment">/* Returns the maximum value for a measurement, that is: 2^resolution-1</span></div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00416"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#af3704819ccda64bae9c13a95a74e70a8">  416</a></span>&#160;uint32_t <a class="code" href="class_a_d_c___module.html#af3704819ccda64bae9c13a95a74e70a8">ADC_Module::getMaxValue</a>()</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;{</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="keywordflow">return</span> analog_max_val;</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;}</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160; </div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;<span class="comment">// Sets the conversion speed</span></div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;<span class="comment">/* Increase the sampling speed for low impedance sources, decrease it for higher impedance ones.</span></div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;<span class="comment">* \param speed can be any of the ADC_SAMPLING_SPEED enum: VERY_LOW_SPEED, LOW_SPEED, MED_SPEED, HIGH_SPEED or VERY_HIGH_SPEED.</span></div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;<span class="comment">* VERY_LOW_SPEED is the lowest possible sampling speed (+24 ADCK).</span></div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;<span class="comment">* LOW_SPEED adds +16 ADCK.</span></div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="comment">* MED_SPEED adds +10 ADCK.</span></div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;<span class="comment">* HIGH_SPEED adds +6 ADCK.</span></div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;<span class="comment">* VERY_HIGH_SPEED is the highest possible sampling speed (0 ADCK added).</span></div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a281b4f6ca2705f934bc86b1a25679138">  431</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a281b4f6ca2705f934bc86b1a25679138">ADC_Module::setConversionSpeed</a>(<a class="code" href="namespace_a_d_c__settings.html#aab853fc1fcb1992fd5d51408adf7688e">ADC_CONVERSION_SPEED</a> speed)</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;{</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160; </div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;    <span class="keywordflow">if</span> (speed == conversion_speed)</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;    { <span class="comment">// no change</span></div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;    }</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160; </div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;    <span class="comment">//if (calibrating) wait_for_cal();</span></div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160; </div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;    <span class="keywordtype">bool</span> is_adack = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;    uint32_t ADC_CFG1_speed = 0; <span class="comment">// store the clock and divisor (set to 0 to avoid warnings)</span></div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160; </div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;    <span class="keywordflow">switch</span> (speed)</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;    {</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;<span class="comment">// normal bus clock</span></div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;<span class="preprocessor">#ifndef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::VERY_LOW_SPEED:</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;        <span class="comment">// ADC_CFG1_speed = ADC_CFG1_VERY_LOW_SPEED;</span></div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;        ADC_CFG1_speed = get_CFG_VERY_LOW_SPEED(ADC_F_BUS);</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::LOW_SPEED:</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADHSC);</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADLPC);</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;        <span class="comment">// ADC_CFG1_speed = ADC_CFG1_LOW_SPEED;</span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;        ADC_CFG1_speed = get_CFG_LOW_SPEED(ADC_F_BUS);</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::MED_SPEED:</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADHSC);</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLPC);</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;        ADC_CFG1_speed = get_CFG_MEDIUM_SPEED(ADC_F_BUS);</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;<span class="preprocessor">#ifndef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::HIGH_SPEED_16BITS:</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;        <span class="comment">// ADC_CFG1_speed = ADC_CFG1_HI_SPEED_16_BITS;</span></div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;        ADC_CFG1_speed = get_CFG_HI_SPEED_16_BITS(ADC_F_BUS);</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::HIGH_SPEED:</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADHSC);</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLPC);</div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;        ADC_CFG1_speed = get_CFG_HIGH_SPEED(ADC_F_BUS);</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="preprocessor">#ifndef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::VERY_HIGH_SPEED:</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;        <span class="comment">// ADC_CFG1_speed = ADC_CFG1_VERY_HIGH_SPEED;</span></div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;        ADC_CFG1_speed = get_CFG_VERY_HIGH_SPEED(ADC_F_BUS);</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160; </div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;<span class="comment">// adack - async clock source, independent of the bus clock</span></div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4 // fADK = 10 or 20 MHz</span></div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_10:</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADHSC);</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_20:</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADHSC);</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;<span class="preprocessor">#else // fADK = 2.4, 4.0, 5.2 or 6.2 MHz</span></div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_2_4:</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_4_0:</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_5_2:</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;    <span class="keywordflow">case</span> ADC_CONVERSION_SPEED::ADACK_6_2:</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADHSC);</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLPC);</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;        is_adack = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160; </div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;    <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::OTHER;</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;    }</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160; </div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;    <span class="keywordflow">if</span> (is_adack)</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;    {</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;<span class="comment">// async clock source, independent of the bus clock</span></div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;        atomic::setBitFlag(adc_regs.GC, ADC_GC_ADACKEN);     <span class="comment">// enable ADACK (takes max 5us to be ready)</span></div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADICLK(3)); <span class="comment">// select ADACK as clock source</span></div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADIV(3)); <span class="comment">// select no dividers</span></div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADACKEN);</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADICLK(3));</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADIV(3));</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;    }</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;    {</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;<span class="comment">// normal bus clock used - disable the internal asynchronous clock</span></div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;<span class="comment">// total speed can be: bus, bus/2, bus/4, bus/8 or bus/16.</span></div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;        atomic::clearBitFlag(adc_regs.GC, ADC_GC_ADACKEN);                                          <span class="comment">// disable async</span></div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADICLK(3), ADC_CFG1_speed &amp; ADC_CFG_ADICLK(3)); <span class="comment">// bus or bus/2</span></div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADIV(3), ADC_CFG1_speed &amp; ADC_CFG_ADIV(3));     <span class="comment">// divisor for the clock source</span></div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADACKEN);</div>
<div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;        atomic::changeBitFlag(adc_regs.CFG1, ADC_CFG1_ADICLK(3), ADC_CFG1_speed &amp; ADC_CFG1_ADICLK(3));</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;        atomic::changeBitFlag(adc_regs.CFG1, ADC_CFG1_ADIV(3), ADC_CFG1_speed &amp; ADC_CFG1_ADIV(3));</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;    }</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160; </div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;    conversion_speed = speed;</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;    <a class="code" href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">calibrate</a>();</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;}</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160; </div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;<span class="comment">// Sets the sampling speed</span></div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;<span class="comment">/* Increase the sampling speed for low impedance sources, decrease it for higher impedance ones.</span></div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;<span class="comment">* \param speed can be any of the ADC_SAMPLING_SPEED enum: VERY_LOW_SPEED, LOW_SPEED, MED_SPEED, HIGH_SPEED or VERY_HIGH_SPEED.</span></div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;<span class="comment">* VERY_LOW_SPEED is the lowest possible sampling speed (+24 ADCK).</span></div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;<span class="comment">* LOW_SPEED adds +16 ADCK.</span></div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;<span class="comment">* MED_SPEED adds +10 ADCK.</span></div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;<span class="comment">* HIGH_SPEED adds +6 ADCK.</span></div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;<span class="comment">* VERY_HIGH_SPEED is the highest possible sampling speed (0 ADCK added).</span></div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00583"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a2aa4693c5be479f3189d31f59d212509">  583</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a2aa4693c5be479f3189d31f59d212509">ADC_Module::setSamplingSpeed</a>(<a class="code" href="namespace_a_d_c__settings.html#af0d80a1aae7288f77b13f0e01d9da0d3">ADC_SAMPLING_SPEED</a> speed)</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;{</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160; </div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;    <span class="keywordflow">switch</span> (speed)</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;    {</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::VERY_LOW_SPEED:</div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(3));</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::LOW_SPEED:</div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(2));</div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::LOW_MED_SPEED:</div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(1));</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::MED_SPEED:</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;        atomic::setBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(0));</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::MED_HIGH_SPEED:</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time disabled</span></div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(3));</div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::HIGH_SPEED:</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time disabled</span></div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(2));</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::HIGH_VERY_HIGH_SPEED:</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time disabled</span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(1));</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::VERY_HIGH_SPEED:</div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;        atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_ADLSMP); <span class="comment">// long sampling time disabled</span></div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;        atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_ADSTS(3), ADC_CFG_ADSTS(0));</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::VERY_LOW_SPEED:</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLSMP);      <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_ADLSTS(3)); <span class="comment">// maximum sampling time (+24 ADCK)</span></div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::LOW_SPEED:</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLSMP);                           <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;        atomic::changeBitFlag(adc_regs.CFG2, ADC_CFG2_ADLSTS(3), ADC_CFG2_ADLSTS(1)); <span class="comment">// high sampling time (+16 ADCK)</span></div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::MED_SPEED:</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLSMP);                           <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;        atomic::changeBitFlag(adc_regs.CFG2, ADC_CFG2_ADLSTS(3), ADC_CFG2_ADLSTS(2)); <span class="comment">// medium sampling time (+10 ADCK)</span></div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::HIGH_SPEED:</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;        atomic::setBitFlag(adc_regs.CFG1, ADC_CFG1_ADLSMP);    <span class="comment">// long sampling time enable</span></div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_ADLSTS(3)); <span class="comment">// low sampling time (+6 ADCK)</span></div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;    <span class="keywordflow">case</span> ADC_SAMPLING_SPEED::VERY_HIGH_SPEED:</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;        atomic::clearBitFlag(adc_regs.CFG1, ADC_CFG1_ADLSMP); <span class="comment">// shortest sampling time</span></div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;    }</div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;    sampling_speed = speed;</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;}</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160; </div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;<span class="comment">/* Set the number of averages: 0, 4, 8, 16 or 32.</span></div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a55954618c5c27c1ffce4321e912bac52">  651</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a55954618c5c27c1ffce4321e912bac52">ADC_Module::setAveraging</a>(uint8_t num)</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;{</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160; </div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160; </div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;    <span class="keywordflow">if</span> (num &lt;= 1)</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;    {</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;        num = 0;</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;<span class="comment">// ADC_SC3_avge = 0;</span></div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;        atomic::clearBitFlag(adc_regs.GC, ADC_GC_AVGE);</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;        atomic::clearBitFlag(adc_regs.SC3, ADC_SC3_AVGE);</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;    }</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;    {</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;<span class="comment">// ADC_SC3_avge = 1;</span></div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;        atomic::setBitFlag(adc_regs.GC, ADC_GC_AVGE);</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;        atomic::setBitFlag(adc_regs.SC3, ADC_SC3_AVGE);</div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;        <span class="keywordflow">if</span> (num &lt;= 4)</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;        {</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;            num = 4;</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;<span class="comment">// ADC_SC3_avgs0 = 0;</span></div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;<span class="comment">// ADC_SC3_avgs1 = 0;</span></div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;            atomic::clearBitFlag(adc_regs.CFG, ADC_CFG_AVGS(3));</div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;            atomic::clearBitFlag(adc_regs.SC3, ADC_SC3_AVGS(3));</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;        }</div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (num &lt;= 8)</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;        {</div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;            num = 8;</div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;<span class="comment">// ADC_SC3_avgs0 = 1;</span></div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;<span class="comment">// ADC_SC3_avgs1 = 0;</span></div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;            atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_AVGS(3), ADC_CFG_AVGS(1));</div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;            atomic::changeBitFlag(adc_regs.SC3, ADC_SC3_AVGS(3), ADC_SC3_AVGS(1));</div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;        }</div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (num &lt;= 16)</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;        {</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;            num = 16;</div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;<span class="comment">// ADC_SC3_avgs0 = 0;</span></div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;<span class="comment">// ADC_SC3_avgs1 = 1;</span></div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;            atomic::changeBitFlag(adc_regs.CFG, ADC_CFG_AVGS(3), ADC_CFG_AVGS(2));</div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;            atomic::changeBitFlag(adc_regs.SC3, ADC_SC3_AVGS(3), ADC_SC3_AVGS(2));</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;        }</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;        {</div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;            num = 32;</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;<span class="comment">// ADC_SC3_avgs0 = 1;</span></div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;<span class="comment">// ADC_SC3_avgs1 = 1;</span></div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;            atomic::setBitFlag(adc_regs.CFG, ADC_CFG_AVGS(3));</div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;            atomic::setBitFlag(adc_regs.SC3, ADC_SC3_AVGS(3));</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;        }</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;    }</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;    analog_num_average = num;</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;}</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160; </div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;<span class="comment">/* Enable interrupts: An ADC Interrupt will be raised when the conversion is completed</span></div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;<span class="comment">*  (including hardware averages and if the comparison (if any) is true).</span></div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00726"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a65395dfc2a15bc015e1ee723b22235b5">  726</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a65395dfc2a15bc015e1ee723b22235b5">ADC_Module::enableInterrupts</a>(<span class="keywordtype">void</span> (*isr)(<span class="keywordtype">void</span>), uint8_t priority)</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;{</div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160; </div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;<span class="comment">// ADC_SC1A_aien = 1;</span></div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;    atomic::setBitFlag(adc_regs.HC0, ADC_HC_AIEN);</div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;    interrupts_enabled = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;    atomic::setBitFlag(adc_regs.SC1A, ADC_SC1_AIEN);</div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160; </div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;    attachInterruptVector(IRQ_ADC, isr);</div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;    NVIC_SET_PRIORITY(IRQ_ADC, priority);</div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;    NVIC_ENABLE_IRQ(IRQ_ADC);</div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;}</div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160; </div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;<span class="comment">/* Disable interrupts</span></div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00747"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#aa4509062644982526fee3c02e0b528fc">  747</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#aa4509062644982526fee3c02e0b528fc">ADC_Module::disableInterrupts</a>()</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;{</div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;<span class="comment">// ADC_SC1A_aien = 0;</span></div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;    atomic::clearBitFlag(adc_regs.HC0, ADC_HC_AIEN);</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;    interrupts_enabled = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;    atomic::clearBitFlag(adc_regs.SC1A, ADC_SC1_AIEN);</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160; </div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;    NVIC_DISABLE_IRQ(IRQ_ADC);</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;}</div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160; </div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;<span class="preprocessor">#ifdef ADC_USE_DMA</span></div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;<span class="comment">/* Enable DMA request: An ADC DMA request will be raised when the conversion is completed</span></div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;<span class="comment">*  (including hardware averages and if the comparison (if any) is true).</span></div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00764"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#af3d14c01b1442c0c34b5dbc9a6e49f35">  764</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#af3d14c01b1442c0c34b5dbc9a6e49f35">ADC_Module::enableDMA</a>()</div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;{</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160; </div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160; </div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;<span class="comment">// ADC_SC2_dma = 1;</span></div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;    atomic::setBitFlag(adc_regs.GC, ADC_GC_DMAEN);</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;    atomic::setBitFlag(adc_regs.SC2, ADC_SC2_DMAEN);</div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;}</div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160; </div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;<span class="comment">/* Disable ADC DMA request</span></div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00781"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ac1610dcab46476f287c2dd4d96465c47">  781</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#ac1610dcab46476f287c2dd4d96465c47">ADC_Module::disableDMA</a>()</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;{</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160; </div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;<span class="comment">// ADC_SC2_dma = 0;</span></div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;    atomic::clearBitFlag(adc_regs.GC, ADC_GC_DMAEN);</div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;    atomic::clearBitFlag(adc_regs.SC2, ADC_SC2_DMAEN);</div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;}</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160; </div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;<span class="comment">/* Enable the compare function: A conversion will be completed only when the ADC value</span></div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;<span class="comment">*  is &gt;= compValue (greaterThan=1) or &lt; compValue (greaterThan=0)</span></div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;<span class="comment">*  Call it after changing the resolution</span></div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;<span class="comment">*  Use with interrupts or poll conversion completion with isADC_Complete()</span></div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00798"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ae7a632267f21b79c31c1dae56b5da188">  798</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#ae7a632267f21b79c31c1dae56b5da188">ADC_Module::enableCompare</a>(int16_t compValue, <span class="keywordtype">bool</span> greaterThan)</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;{</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160; </div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>(); <span class="comment">// if we modify the adc&#39;s registers when calibrating, it will fail</span></div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160; </div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;<span class="comment">// ADC_SC2_cfe = 1; // enable compare</span></div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;<span class="comment">// ADC_SC2_cfgt = (int32_t)greaterThan; // greater or less than?</span></div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;    atomic::setBitFlag(adc_regs.GC, ADC_GC_ACFE);</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;    atomic::changeBitFlag(adc_regs.GC, ADC_GC_ACFGT, ADC_GC_ACFGT * greaterThan);</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;    adc_regs.CV = ADC_CV_CV1(compValue);</div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;    atomic::setBitFlag(adc_regs.SC2, ADC_SC2_ACFE);</div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;    atomic::changeBitFlag(adc_regs.SC2, ADC_SC2_ACFGT, ADC_SC2_ACFGT * greaterThan);</div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160; </div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;    adc_regs.CV1 = (int16_t)compValue; <span class="comment">// comp value</span></div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;}</div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160; </div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;<span class="comment">/* Enable the compare function: A conversion will be completed only when the ADC value</span></div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;<span class="comment">*  is inside (insideRange=1) or outside (=0) the range given by (lowerLimit, upperLimit),</span></div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;<span class="comment">*  including (inclusive=1) the limits or not (inclusive=0).</span></div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;<span class="comment">*  See Table 31-78, p. 617 of the freescale manual.</span></div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;<span class="comment">*  Call it after changing the resolution</span></div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00824"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ab8e64bab9d4e7f1935a260629e5d71d5">  824</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#ab8e64bab9d4e7f1935a260629e5d71d5">ADC_Module::enableCompareRange</a>(int16_t lowerLimit, int16_t upperLimit, <span class="keywordtype">bool</span> insideRange, <span class="keywordtype">bool</span> inclusive)</div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;{</div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160; </div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>(); <span class="comment">// if we modify the adc&#39;s registers when calibrating, it will fail</span></div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160; </div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;<span class="comment">// ADC_SC2_cfe = 1; // enable compare</span></div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;<span class="comment">// ADC_SC2_cren = 1; // enable compare range</span></div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;    atomic::setBitFlag(adc_regs.GC, ADC_GC_ACFE);</div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;    atomic::setBitFlag(adc_regs.GC, ADC_GC_ACREN);</div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;    atomic::setBitFlag(adc_regs.SC2, ADC_SC2_ACFE);</div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;    atomic::setBitFlag(adc_regs.SC2, ADC_SC2_ACREN);</div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160; </div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;    <span class="keywordflow">if</span> (insideRange &amp;&amp; inclusive)</div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;    { <span class="comment">// True if value is inside the range, including the limits. CV1 &lt;= CV2 and ACFGT=1</span></div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;<span class="comment">// ADC_SC2_cfgt = 1;</span></div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;        atomic::setBitFlag(adc_regs.GC, ADC_GC_ACFGT);</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;        adc_regs.CV = ADC_CV_CV1(lowerLimit) | ADC_CV_CV2(upperLimit);</div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;        atomic::setBitFlag(adc_regs.SC2, ADC_SC2_ACFGT);</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;        adc_regs.CV1 = (int16_t)lowerLimit;</div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;        adc_regs.CV2 = (int16_t)upperLimit;</div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;    }</div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (insideRange &amp;&amp; !inclusive)</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;    { <span class="comment">// True if value is inside the range, excluding the limits. CV1 &gt; CV2 and ACFGT=0</span></div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;<span class="comment">// ADC_SC2_cfgt = 0;</span></div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;        atomic::clearBitFlag(adc_regs.GC, ADC_GC_ACFGT);</div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;        adc_regs.CV = ADC_CV_CV2(lowerLimit) | ADC_CV_CV1(upperLimit);</div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;        atomic::clearBitFlag(adc_regs.SC2, ADC_SC2_ACFGT);</div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;        adc_regs.CV2 = (int16_t)lowerLimit;</div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;        adc_regs.CV1 = (int16_t)upperLimit;</div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;    }</div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!insideRange &amp;&amp; inclusive)</div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;    { <span class="comment">// True if value is outside of range or is equal to either limit. CV1 &gt; CV2 and ACFGT=1</span></div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;<span class="comment">// ADC_SC2_cfgt = 1;</span></div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;        atomic::setBitFlag(adc_regs.GC, ADC_GC_ACFGT);</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;        adc_regs.CV = ADC_CV_CV2(lowerLimit) | ADC_CV_CV1(upperLimit);</div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;        atomic::setBitFlag(adc_regs.SC2, ADC_SC2_ACFGT);</div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;        adc_regs.CV2 = (int16_t)lowerLimit;</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;        adc_regs.CV1 = (int16_t)upperLimit;</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;    }</div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!insideRange &amp;&amp; !inclusive)</div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;    { <span class="comment">// True if value is outside of range and not equal to either limit. CV1 &gt; CV2 and ACFGT=0</span></div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;<span class="comment">// ADC_SC2_cfgt = 0;</span></div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;        atomic::clearBitFlag(adc_regs.GC, ADC_GC_ACFGT);</div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;        adc_regs.CV = ADC_CV_CV1(lowerLimit) | ADC_CV_CV2(upperLimit);</div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;        atomic::clearBitFlag(adc_regs.SC2, ADC_SC2_ACFGT);</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;        adc_regs.CV1 = (int16_t)lowerLimit;</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;        adc_regs.CV2 = (int16_t)upperLimit;</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;    }</div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;}</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160; </div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;<span class="comment">/* Disable the compare function</span></div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00893"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ac635f675a9690a4db016c73c31818262">  893</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#ac635f675a9690a4db016c73c31818262">ADC_Module::disableCompare</a>()</div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;{</div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160; </div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;<span class="comment">// ADC_SC2_cfe = 0;</span></div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;    atomic::clearBitFlag(adc_regs.GC, ADC_GC_ACFE);</div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;    atomic::clearBitFlag(adc_regs.SC2, ADC_SC2_ACFE);</div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;}</div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160; </div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;<span class="preprocessor">#ifdef ADC_USE_PGA</span></div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;<span class="comment">/* Enables the PGA and sets the gain</span></div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;<span class="comment">*   Use only for signals lower than 1.2 V</span></div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;<span class="comment">*   \param gain can be 1, 2, 4, 8, 16 32 or 64</span></div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;<span class="comment">*</span></div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;<span class="keywordtype">void</span> ADC_Module::enablePGA(uint8_t gain)</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;{</div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160; </div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;    uint8_t setting;</div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;    <span class="keywordflow">if</span> (gain &lt;= 1)</div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;    {</div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;        setting = 0;</div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;    }</div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (gain &lt;= 2)</div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160;    {</div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;        setting = 1;</div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;    }</div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (gain &lt;= 4)</div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;    {</div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;        setting = 2;</div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;    }</div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (gain &lt;= 8)</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;    {</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;        setting = 3;</div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;    }</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (gain &lt;= 16)</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;    {</div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;        setting = 4;</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;    }</div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (gain &lt;= 32)</div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;    {</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;        setting = 5;</div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;    }</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;    { <span class="comment">// 64</span></div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;        setting = 6;</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;    }</div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160; </div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;    adc_regs.PGA = ADC_PGA_PGAEN | ADC_PGA_PGAG(setting);</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;    pga_value = 1 &lt;&lt; setting;</div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;}</div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160; </div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;<span class="comment">/* Returns the PGA level</span></div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;<span class="comment">*  PGA level = from 0 to 64</span></div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;uint8_t ADC_Module::getPGA()</div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;{</div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;    <span class="keywordflow">return</span> pga_value;</div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;}</div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160; </div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;<span class="keywordtype">void</span> ADC_Module::disablePGA()</div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;{</div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;    <span class="comment">// ADC_PGA_pgaen = 0;</span></div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;    atomic::clearBitFlag(adc_regs.PGA, ADC_PGA_PGAEN);</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;    pga_value = 1;</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;}</div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160; </div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160; </div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;<span class="comment">// check whether the pin is a valid analog pin</span></div>
<div class="line"><a name="l00969"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">  969</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">ADC_Module::checkPin</a>(uint8_t pin)</div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160;{</div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160; </div>
<div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160;    <span class="keywordflow">if</span> (pin &gt; ADC_MAX_PIN)</div>
<div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160;    {</div>
<div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;    }</div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160; </div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;    <span class="comment">// translate pin number to SC1A number, that also contains MUX a or b info.</span></div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;    <span class="keyword">const</span> uint8_t sc1a_pin = channel2sc1a[pin];</div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160; </div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160;    <span class="comment">// check for valid pin</span></div>
<div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160;    <span class="keywordflow">if</span> ((sc1a_pin &amp; ADC_SC1A_CHANNELS) == ADC_SC1A_PIN_INVALID)</div>
<div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;    {</div>
<div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160;    }</div>
<div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160; </div>
<div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;}</div>
<div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160; </div>
<div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160;<span class="preprocessor">#if ADC_DIFF_PAIRS &gt; 0</span></div>
<div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;<span class="comment">// check whether the pins are a valid analog differential pins (including PGA if enabled)</span></div>
<div class="line"><a name="l00991"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">  991</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">ADC_Module::checkDifferentialPins</a>(uint8_t pinP, uint8_t pinN)</div>
<div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;{</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;    <span class="keywordflow">if</span> (pinP &gt; ADC_MAX_PIN)</div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;    {</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;    }</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160; </div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;    <span class="comment">// translate pinP number to SC1A number, to make sure it&#39;s differential</span></div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;    uint8_t sc1a_pin = channel2sc1a[pinP];</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160; </div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;    <span class="keywordflow">if</span> (!(sc1a_pin &amp; ADC_SC1A_PIN_DIFF))</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;    {</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;    }</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160; </div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160;    <span class="comment">// get SC1A number, also whether it can do PGA</span></div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;    sc1a_pin = getDifferentialPair(pinP);</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160; </div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;    <span class="comment">// the pair can&#39;t be measured with this ADC</span></div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;    <span class="keywordflow">if</span> ((sc1a_pin &amp; ADC_SC1A_CHANNELS) == ADC_SC1A_PIN_INVALID)</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;    {</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;    }</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160; </div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;<span class="preprocessor">#ifdef ADC_USE_PGA</span></div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;    <span class="comment">// check if PGA is enabled, and whether the pin has access to it in this ADC module</span></div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;    <span class="keywordflow">if</span> (isPGAEnabled() &amp;&amp; !(sc1a_pin &amp; ADC_SC1A_PIN_PGA))</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;    {</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;    }</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;<span class="preprocessor">#endif // ADC_USE_PGA</span></div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160; </div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;}</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160; </div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160; </div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;<span class="comment">// Starts a single-ended conversion on the pin (sets the mux correctly)</span></div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;<span class="comment">// Doesn&#39;t do any of the checks on the pin</span></div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;<span class="comment">// It doesn&#39;t change the continuous conversion bit</span></div>
<div class="line"><a name="l01032"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5"> 1032</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5">ADC_Module::startReadFast</a>(uint8_t pin)</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;{</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160; </div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160;    <span class="comment">// translate pin number to SC1A number, that also contains MUX a or b info.</span></div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;    <span class="keyword">const</span> uint8_t sc1a_pin = channel2sc1a[pin];</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160; </div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;<span class="comment">// Teensy 4 has no a or b channels</span></div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160;    <span class="keywordflow">if</span> (sc1a_pin &amp; ADC_SC1A_PIN_MUX)</div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;    { <span class="comment">// mux a</span></div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160;        atomic::clearBitFlag(adc_regs.CFG2, ADC_CFG2_MUXSEL);</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;    }</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;    { <span class="comment">// mux b</span></div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160;        atomic::setBitFlag(adc_regs.CFG2, ADC_CFG2_MUXSEL);</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;    }</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160; </div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;    <span class="comment">// select pin for single-ended mode and start conversion, enable interrupts if requested</span></div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160;    __disable_irq();</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160;    adc_regs.HC0 = (sc1a_pin &amp; ADC_SC1A_CHANNELS) + interrupts_enabled * ADC_HC_AIEN;</div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;    adc_regs.SC1A = (sc1a_pin &amp; ADC_SC1A_CHANNELS) + atomic::getBitFlag(adc_regs.SC1A, ADC_SC1_AIEN) * ADC_SC1_AIEN;</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160;}</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160; </div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;<span class="preprocessor">#if ADC_DIFF_PAIRS &gt; 0</span></div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;<span class="comment">// Starts a differential conversion on the pair of pins</span></div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;<span class="comment">// Doesn&#39;t do any of the checks on the pins</span></div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;<span class="comment">// It doesn&#39;t change the continuous conversion bit</span></div>
<div class="line"><a name="l01065"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd"> 1065</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd">ADC_Module::startDifferentialFast</a>(uint8_t pinP, uint8_t pinN)</div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;{</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160; </div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;    <span class="comment">// get SC1A number</span></div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;    uint8_t sc1a_pin = getDifferentialPair(pinP);</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160; </div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;<span class="preprocessor">#ifdef ADC_USE_PGA</span></div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;    <span class="comment">// check if PGA is enabled</span></div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;    <span class="keywordflow">if</span> (isPGAEnabled())</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;    {</div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;        sc1a_pin = 0x2; <span class="comment">// PGA always uses DAD2</span></div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160;    }</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160;<span class="preprocessor">#endif // ADC_USE_PGA</span></div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160; </div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;    __disable_irq();</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;    adc_regs.SC1A = ADC_SC1_DIFF + (sc1a_pin &amp; ADC_SC1A_CHANNELS) + atomic::getBitFlag(adc_regs.SC1A, ADC_SC1_AIEN) * ADC_SC1_AIEN;</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>&#160;}</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160; </div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160;<span class="comment">    This methods are implemented like this:</span></div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;<span class="comment">    1. Check that the pin is correct</span></div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;<span class="comment">    2. if calibrating, wait for it to finish before modifiying any ADC register</span></div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;<span class="comment">    3. Check if we&#39;re interrupting a measurement, if so store the settings.</span></div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;<span class="comment">    4. Disable continuous conversion mode and start the current measurement</span></div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160;<span class="comment">    5. Wait until it&#39;s done, and check whether the comparison (if any) was succesful.</span></div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160;<span class="comment">    6. Get the result.</span></div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160;<span class="comment">    7. If step 3. is true, restore the previous ADC settings</span></div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>&#160; </div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>&#160;<span class="comment">/* Reads the analog value of the pin.</span></div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>&#160;<span class="comment">* It waits until the value is read and then returns the result.</span></div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>&#160;<span class="comment">* If a comparison has been set up and fails, it will return ADC_ERROR_VALUE.</span></div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>&#160;<span class="comment">* Set the resolution, number of averages and voltage reference using the appropriate functions.</span></div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01104"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ad492adad4a9fa728625be82602bf1672"> 1104</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_a_d_c___module.html#ad492adad4a9fa728625be82602bf1672">ADC_Module::analogRead</a>(uint8_t pin)</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160;{</div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160; </div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160;    <span class="comment">//digitalWriteFast(LED_BUILTIN, HIGH);</span></div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160; </div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160;    <span class="comment">// check whether the pin is correct</span></div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">checkPin</a>(pin))</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;    {</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160;        <span class="keywordflow">return</span> ADC_ERROR_VALUE;</div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160;    }</div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160; </div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160;    <span class="comment">// increase the counter of measurements</span></div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>++;</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160; </div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160;    <span class="comment">//digitalWriteFast(LED_BUILTIN, !digitalReadFast(LED_BUILTIN));</span></div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160; </div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160; </div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160;    <span class="comment">//digitalWriteFast(LED_BUILTIN, !digitalReadFast(LED_BUILTIN));</span></div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160; </div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;    <span class="comment">// check if we are interrupting a measurement, store setting if so.</span></div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160;    <span class="comment">// vars to save the current state of the ADC in case it&#39;s in use</span></div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160;    <a class="code" href="struct_a_d_c___module_1_1_a_d_c___config.html">ADC_Config</a> old_config = {};</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160;    <span class="keyword">const</span> uint8_t wasADCInUse = <a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>(); <span class="comment">// is the ADC running now?</span></div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160; </div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160;    <span class="keywordflow">if</span> (wasADCInUse)</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160;    { <span class="comment">// this means we&#39;re interrupting a conversion</span></div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;        <span class="comment">// save the current conversion config, we don&#39;t want any other interrupts messing up the configs</span></div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;        <span class="comment">//digitalWriteFast(LED_BUILTIN, !digitalReadFast(LED_BUILTIN) );</span></div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160;        <a class="code" href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">saveConfig</a>(&amp;old_config);</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160;    }</div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160; </div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160;    <span class="comment">// no continuous mode</span></div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160;    <a class="code" href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">singleMode</a>();</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160; </div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160;    <a class="code" href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5">startReadFast</a>(pin); <span class="comment">// start single read</span></div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160; </div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160;    <span class="comment">// wait for the ADC to finish</span></div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160;    <span class="keywordflow">while</span> (<a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>())</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160;    {</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;        yield();</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;    }</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160; </div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;    <span class="comment">// it&#39;s done, check if the comparison (if any) was true</span></div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;    int32_t result;</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;    __disable_irq(); <span class="comment">// make sure nothing interrupts this part</span></div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a3aefadc245d1582d3ae97e1b9c7acac8">isComplete</a>())</div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>&#160;    { <span class="comment">// conversion succeded</span></div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>&#160;        result = (uint16_t)<a class="code" href="class_a_d_c___module.html#a60d0edc82fd1dbb2e20d090a53718ce2">readSingle</a>();</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>&#160;    }</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>&#160;    { <span class="comment">// comparison was false</span></div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::COMPARISON;</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>&#160;        result = ADC_ERROR_VALUE;</div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>&#160;    }</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>&#160; </div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>&#160;    <span class="comment">// if we interrupted a conversion, set it again</span></div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>&#160;    <span class="keywordflow">if</span> (wasADCInUse)</div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>&#160;    {</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>&#160;        <span class="comment">//digitalWriteFast(LED_BUILTIN, !digitalReadFast(LED_BUILTIN) );</span></div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>&#160;        <a class="code" href="class_a_d_c___module.html#a1bb50f669bbc41937fb5157abe2050ca">loadConfig</a>(&amp;old_config);</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>&#160;    }</div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>&#160; </div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>--;</div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>&#160;    <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>&#160; </div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>&#160;} <span class="comment">// analogRead</span></div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>&#160; </div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>&#160;<span class="preprocessor">#if ADC_DIFF_PAIRS &gt; 0</span></div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>&#160;<span class="comment">/* Reads the differential analog value of two pins (pinP - pinN)</span></div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>&#160;<span class="comment">* It waits until the value is read and then returns the result</span></div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>&#160;<span class="comment">* If a comparison has been set up and fails, it will return ADC_ERROR_DIFF_VALUE</span></div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>&#160;<span class="comment">* Set the resolution, number of averages and voltage reference using the appropriate functions</span></div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01185"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a4a57f6a9b0e3884f3862062b33f1a447"> 1185</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="class_a_d_c___module.html#a4a57f6a9b0e3884f3862062b33f1a447">ADC_Module::analogReadDifferential</a>(uint8_t pinP, uint8_t pinN)</div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>&#160;{</div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>&#160; </div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">checkDifferentialPins</a>(pinP, pinN))</div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>&#160;    {</div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>&#160;        <span class="keywordflow">return</span> ADC_ERROR_VALUE; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>&#160;    }</div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>&#160; </div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>&#160;    <span class="comment">// increase the counter of measurements</span></div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>++;</div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>&#160; </div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>&#160;    <span class="comment">// check for calibration before setting channels,</span></div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>&#160;    <span class="comment">// because conversion will start as soon as we write to adc_regs.SC1A</span></div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>&#160; </div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160;    uint8_t res = <a class="code" href="class_a_d_c___module.html#a58cabc09d41f6aa25319fd514b47c48f">getResolution</a>();</div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160; </div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160;    <span class="comment">// vars to saved the current state of the ADC in case it&#39;s in use</span></div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>&#160;    <a class="code" href="struct_a_d_c___module_1_1_a_d_c___config.html">ADC_Config</a> old_config = {};</div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>&#160;    uint8_t wasADCInUse = <a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>(); <span class="comment">// is the ADC running now?</span></div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>&#160; </div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>&#160;    <span class="keywordflow">if</span> (wasADCInUse)</div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>&#160;    { <span class="comment">// this means we&#39;re interrupting a conversion</span></div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>&#160;        <span class="comment">// save the current conversion config, we don&#39;t want any other interrupts messing up the configs</span></div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>&#160;        <a class="code" href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">saveConfig</a>(&amp;old_config);</div>
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>&#160;    }</div>
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>&#160; </div>
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>&#160;    <span class="comment">// no continuous mode</span></div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>&#160;    <a class="code" href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">singleMode</a>();</div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160; </div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>&#160;    <a class="code" href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd">startDifferentialFast</a>(pinP, pinN); <span class="comment">// start conversion</span></div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160; </div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160;    <span class="comment">// wait for the ADC to finish</span></div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;    <span class="keywordflow">while</span> (<a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>())</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160;    {</div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;        yield();</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160;        <span class="comment">//digitalWriteFast(LED_BUILTIN, !digitalReadFast(LED_BUILTIN) );</span></div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;    }</div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160; </div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;    <span class="comment">// it&#39;s done, check if the comparison (if any) was true</span></div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;    int32_t result;</div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;    __disable_irq(); <span class="comment">// make sure nothing interrupts this part</span></div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a3aefadc245d1582d3ae97e1b9c7acac8">isComplete</a>())</div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;    {                                            <span class="comment">// conversion succeded</span></div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;        result = (int16_t)(int32_t)<a class="code" href="class_a_d_c___module.html#a60d0edc82fd1dbb2e20d090a53718ce2">readSingle</a>(); <span class="comment">// cast to 32 bits</span></div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160;        <span class="keywordflow">if</span> (res == 16)</div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;        {                <span class="comment">// 16 bit differential is actually 15 bit + 1 bit sign</span></div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160;            result *= 2; <span class="comment">// multiply by 2 as if it were really 16 bits, so that getMaxValue gives a correct value.</span></div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;        }</div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160;    }</div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;    { <span class="comment">// comparison was false</span></div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160;        result = ADC_ERROR_VALUE;</div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::COMPARISON;</div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>&#160;    }</div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>&#160;    __enable_irq();</div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>&#160; </div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>&#160;    <span class="comment">// if we interrupted a conversion, set it again</span></div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>&#160;    <span class="keywordflow">if</span> (wasADCInUse)</div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>&#160;    {</div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>&#160;        <a class="code" href="class_a_d_c___module.html#a1bb50f669bbc41937fb5157abe2050ca">loadConfig</a>(&amp;old_config);</div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>&#160;    }</div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>&#160; </div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>--;</div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>&#160;    <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>&#160; </div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>&#160;} <span class="comment">// analogReadDifferential</span></div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>&#160; </div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>&#160;<span class="comment">    This methods are implemented like this:</span></div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>&#160;<span class="comment">    1. Check that the pin is correct</span></div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>&#160;<span class="comment">    2. if calibrating, wait for it to finish before modifiying any ADC register</span></div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>&#160;<span class="comment">    3. Check if we&#39;re interrupting a measurement, if so store the settings (in a member of the class, so it can be accessed).</span></div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>&#160;<span class="comment">    4. Disable continuous conversion mode and start the current measurement</span></div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>&#160;<span class="comment">    The fast methods only do step 4.</span></div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>&#160; </div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>&#160;<span class="comment">/* Starts an analog measurement on the pin.</span></div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>&#160;<span class="comment">*  It returns inmediately, read value with readSingle().</span></div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>&#160;<span class="comment">*  If the pin is incorrect it returns false.</span></div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01277"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#af8a13facb0c15ef14e527a37f2386ce5"> 1277</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#af8a13facb0c15ef14e527a37f2386ce5">ADC_Module::startSingleRead</a>(uint8_t pin)</div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>&#160;{</div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>&#160; </div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>&#160;    <span class="comment">// check whether the pin is correct</span></div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">checkPin</a>(pin))</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>&#160;    {</div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>&#160;    }</div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>&#160; </div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>&#160; </div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>&#160;    <span class="comment">// save the current state of the ADC in case it&#39;s in use</span></div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>&#160;    <a class="code" href="class_a_d_c___module.html#a34f6f7878889aa3644b279f9440dc0bf">adcWasInUse</a> = <a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>(); <span class="comment">// is the ADC running now?</span></div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>&#160; </div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a34f6f7878889aa3644b279f9440dc0bf">adcWasInUse</a>)</div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>&#160;    { <span class="comment">// this means we&#39;re interrupting a conversion</span></div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>&#160;        <span class="comment">// save the current conversion config, the adc isr will restore the adc</span></div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>&#160;        <a class="code" href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">saveConfig</a>(&amp;<a class="code" href="class_a_d_c___module.html#afcb1d826e94dad49e376bf3fe0334c39">adc_config</a>);</div>
<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>&#160;    }</div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>&#160; </div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>&#160;    <span class="comment">// no continuous mode</span></div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>&#160;    <a class="code" href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">singleMode</a>();</div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>&#160; </div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>&#160;    <span class="comment">// start measurement</span></div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>&#160;    <a class="code" href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5">startReadFast</a>(pin);</div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>&#160; </div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>&#160;}</div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>&#160; </div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>&#160;<span class="preprocessor">#if ADC_DIFF_PAIRS &gt; 0</span></div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>&#160;<span class="comment">/* Start a differential conversion between two pins (pinP - pinN).</span></div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>&#160;<span class="comment">* It returns inmediately, get value with readSingle().</span></div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>&#160;<span class="comment">* Incorrect pins will return false.</span></div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>&#160;<span class="comment">* Set the resolution, number of averages and voltage reference using the appropriate functions</span></div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01316"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#abe85ed1855a09f18c5d2026cf08968a7"> 1316</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#abe85ed1855a09f18c5d2026cf08968a7">ADC_Module::startSingleDifferential</a>(uint8_t pinP, uint8_t pinN)</div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>&#160;{</div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>&#160; </div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">checkDifferentialPins</a>(pinP, pinN))</div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>&#160;    {</div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>&#160;    }</div>
<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>&#160; </div>
<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>&#160;    <span class="comment">// check for calibration before setting channels,</span></div>
<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>&#160;    <span class="comment">// because conversion will start as soon as we write to adc_regs.SC1A</span></div>
<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>&#160; </div>
<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>&#160;    <span class="comment">// vars to saved the current state of the ADC in case it&#39;s in use</span></div>
<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>&#160;    <a class="code" href="class_a_d_c___module.html#a34f6f7878889aa3644b279f9440dc0bf">adcWasInUse</a> = <a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>(); <span class="comment">// is the ADC running now?</span></div>
<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>&#160; </div>
<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a34f6f7878889aa3644b279f9440dc0bf">adcWasInUse</a>)</div>
<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>&#160;    { <span class="comment">// this means we&#39;re interrupting a conversion</span></div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>&#160;        <span class="comment">// save the current conversion config, we don&#39;t want any other interrupts messing up the configs</span></div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>&#160;        <a class="code" href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">saveConfig</a>(&amp;<a class="code" href="class_a_d_c___module.html#afcb1d826e94dad49e376bf3fe0334c39">adc_config</a>);</div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>&#160;    }</div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>&#160; </div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>&#160;    <span class="comment">// no continuous mode</span></div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>&#160;    <a class="code" href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">singleMode</a>();</div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>&#160; </div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>&#160;    <span class="comment">// start the conversion</span></div>
<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>&#160;    <a class="code" href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd">startDifferentialFast</a>(pinP, pinN);</div>
<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>&#160; </div>
<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>&#160;}</div>
<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>&#160; </div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>&#160;<span class="comment">    This methods are implemented like this:</span></div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>&#160;<span class="comment">    1. Check that the pin is correct</span></div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>&#160;<span class="comment">    2. If calibrating, wait for it to finish before modifiying any ADC register</span></div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>&#160;<span class="comment">    4. Enable continuous conversion mode and start the current measurement</span></div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>&#160; </div>
<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>&#160;<span class="comment">/* Starts continuous conversion on the pin</span></div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>&#160;<span class="comment"> * It returns as soon as the ADC is set, use analogReadContinuous() to read the values</span></div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>&#160;<span class="comment"> * Set the resolution, number of averages and voltage reference using the appropriate functions BEFORE calling this function</span></div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01365"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a2b6284a613c9d3e452d2fc708bf6ce98"> 1365</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#a2b6284a613c9d3e452d2fc708bf6ce98">ADC_Module::startContinuous</a>(uint8_t pin)</div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>&#160;{</div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>&#160; </div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>&#160;    <span class="comment">// check whether the pin is correct</span></div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">checkPin</a>(pin))</div>
<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span>&#160;    {</div>
<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>&#160;    }</div>
<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>&#160; </div>
<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>&#160;    <span class="comment">// check for calibration before setting channels,</span></div>
<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>&#160; </div>
<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span>&#160;    <span class="comment">// increase the counter of measurements</span></div>
<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>++;</div>
<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span>&#160; </div>
<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>&#160;    <span class="comment">// set continuous conversion flag</span></div>
<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>&#160;    <a class="code" href="class_a_d_c___module.html#a8b00e0669bbc7917544d4e2e543f1a27">continuousMode</a>();</div>
<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>&#160; </div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>&#160;    <a class="code" href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5">startReadFast</a>(pin);</div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>&#160; </div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>&#160;}</div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>&#160; </div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>&#160;<span class="preprocessor">#if ADC_DIFF_PAIRS &gt; 0</span></div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>&#160;<span class="comment">/* Starts continuous and differential conversion between the pins (pinP-pinN)</span></div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>&#160;<span class="comment"> * It returns as soon as the ADC is set, use analogReadContinuous() to read the value</span></div>
<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>&#160;<span class="comment"> * Set the resolution, number of averages and voltage reference using the appropriate functions BEFORE calling this function</span></div>
<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01395"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a23fd4fa6b759dcc0c029b3266f6a5fb7"> 1395</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_a_d_c___module.html#a23fd4fa6b759dcc0c029b3266f6a5fb7">ADC_Module::startContinuousDifferential</a>(uint8_t pinP, uint8_t pinN)</div>
<div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>&#160;{</div>
<div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>&#160; </div>
<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">checkDifferentialPins</a>(pinP, pinN))</div>
<div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>&#160;    {</div>
<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>&#160;        <a class="code" href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">fail_flag</a> |= ADC_ERROR::WRONG_PIN;</div>
<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// all others are invalid</span></div>
<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>&#160;    }</div>
<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>&#160; </div>
<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>&#160;    <span class="comment">// increase the counter of measurements</span></div>
<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>&#160;    <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>++;</div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>&#160; </div>
<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>&#160;    <span class="comment">// check for calibration before setting channels,</span></div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>&#160;    <span class="comment">// because conversion will start as soon as we write to adc_regs.SC1A</span></div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>&#160;    <span class="keywordflow">if</span> (calibrating)</div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">wait_for_cal</a>();</div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>&#160; </div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>&#160;    <span class="comment">// save the current state of the ADC in case it&#39;s in use</span></div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>&#160;    uint8_t wasADCInUse = <a class="code" href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">isConverting</a>(); <span class="comment">// is the ADC running now?</span></div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>&#160; </div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>&#160;    <span class="keywordflow">if</span> (wasADCInUse)</div>
<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>&#160;    { <span class="comment">// this means we&#39;re interrupting a conversion</span></div>
<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>&#160;        <span class="comment">// save the current conversion config, we don&#39;t want any other interrupts messing up the configs</span></div>
<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>&#160;        __disable_irq();</div>
<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>&#160;        <a class="code" href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">saveConfig</a>(&amp;<a class="code" href="class_a_d_c___module.html#afcb1d826e94dad49e376bf3fe0334c39">adc_config</a>);</div>
<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>&#160;        __enable_irq();</div>
<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>&#160;    }</div>
<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>&#160; </div>
<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>&#160;    <span class="comment">// set continuous mode</span></div>
<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>&#160;    <a class="code" href="class_a_d_c___module.html#a8b00e0669bbc7917544d4e2e543f1a27">continuousMode</a>();</div>
<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>&#160; </div>
<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>&#160;    <span class="comment">// start conversions</span></div>
<div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>&#160;    <a class="code" href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd">startDifferentialFast</a>(pinP, pinN);</div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>&#160; </div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>&#160;}</div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span>&#160; </div>
<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>&#160;<span class="comment">/* Stops continuous conversion</span></div>
<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l01435"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#a9af29f865bdd376d954112d36b0992f0"> 1435</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#a9af29f865bdd376d954112d36b0992f0">ADC_Module::stopContinuous</a>()</div>
<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>&#160;{</div>
<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>&#160; </div>
<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span>&#160;<span class="comment">// set channel select to all 1&#39;s (31) to stop it.</span></div>
<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>&#160;<span class="preprocessor">#ifdef ADC_TEENSY_4</span></div>
<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>&#160;    adc_regs.HC0 = ADC_SC1A_PIN_INVALID + interrupts_enabled * ADC_HC_AIEN;</div>
<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>&#160;    adc_regs.SC1A = ADC_SC1A_PIN_INVALID + atomic::getBitFlag(adc_regs.SC1A, ADC_SC1_AIEN) * ADC_SC1_AIEN;</div>
<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>&#160; </div>
<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span>&#160;    <span class="comment">// decrease the counter of measurements (unless it&#39;s 0)</span></div>
<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a> &gt; 0)</div>
<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>&#160;    {</div>
<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>&#160;        <a class="code" href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">num_measurements</a>--;</div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>&#160;    }</div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>&#160; </div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>&#160;    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>&#160;}</div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>&#160; </div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>&#160; </div>
<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>&#160;<span class="preprocessor">#ifdef ADC_USE_PDB</span></div>
<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>&#160; </div>
<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>&#160;<span class="comment">// frequency in Hz</span></div>
<div class="line"><a name="l01460"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#acced2e2266868323ff2c53df96791a15"> 1460</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#acced2e2266868323ff2c53df96791a15">ADC_Module::startPDB</a>(uint32_t freq)</div>
<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>&#160;{</div>
<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>&#160;    <span class="keywordflow">if</span> (!(SIM_SCGC6 &amp; SIM_SCGC6_PDB))</div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>&#160;    {                               <span class="comment">// setup PDB</span></div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>&#160;        SIM_SCGC6 |= SIM_SCGC6_PDB; <span class="comment">// enable pdb clock</span></div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>&#160;    }</div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>&#160; </div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>&#160;    <span class="keywordflow">if</span> (freq &gt; ADC_F_BUS)</div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>&#160;        <span class="keywordflow">return</span>; <span class="comment">// too high</span></div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>&#160;    <span class="keywordflow">if</span> (freq &lt; 1)</div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>&#160;        <span class="keywordflow">return</span>; <span class="comment">// too low</span></div>
<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>&#160; </div>
<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>&#160;    <span class="comment">// mod will have to be a 16 bit value</span></div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>&#160;    <span class="comment">// we detect if it&#39;s higher than 0xFFFF and scale it back accordingly.</span></div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>&#160;    uint32_t mod = (ADC_F_BUS / freq);</div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>&#160; </div>
<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>&#160;    uint8_t prescaler = 0; <span class="comment">// from 0 to 7: factor of 1, 2, 4, 8, 16, 32, 64 or 128</span></div>
<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>&#160;    uint8_t mult = 0;      <span class="comment">// from 0 to 3, factor of 1, 10, 20 or 40</span></div>
<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>&#160; </div>
<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>&#160;    <span class="comment">// if mod is too high we need to use prescaler and mult to bring it down to a 16 bit number</span></div>
<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>&#160;    <span class="keyword">const</span> uint32_t min_level = 0xFFFF;</div>
<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>&#160;    <span class="keywordflow">if</span> (mod &gt; min_level)</div>
<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>&#160;    {</div>
<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>&#160;        <span class="keywordflow">if</span> (mod &lt; 2 * min_level)</div>
<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>&#160;        {</div>
<div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>&#160;            prescaler = 1;</div>
<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>&#160;        }</div>
<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 4 * min_level)</div>
<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>&#160;        {</div>
<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>&#160;            prescaler = 2;</div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>&#160;        }</div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 8 * min_level)</div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>&#160;        {</div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>&#160;            prescaler = 3;</div>
<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>&#160;        }</div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 10 * min_level)</div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>&#160;        {</div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>&#160;            mult = 1;</div>
<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>&#160;        }</div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 16 * min_level)</div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>&#160;        {</div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>&#160;            prescaler = 4;</div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>&#160;        }</div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 20 * min_level)</div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>&#160;        {</div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>&#160;            mult = 2;</div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>&#160;        }</div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 32 * min_level)</div>
<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>&#160;        {</div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>&#160;            prescaler = 5;</div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>&#160;        }</div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 40 * min_level)</div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>&#160;        {</div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>&#160;            mult = 3;</div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>&#160;        }</div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 64 * min_level)</div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>&#160;        {</div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>&#160;            prescaler = 6;</div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>&#160;        }</div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 128 * min_level)</div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>&#160;        {</div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>&#160;            prescaler = 7;</div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>&#160;        }</div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 160 * min_level)</div>
<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>&#160;        { <span class="comment">// 16*10</span></div>
<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>&#160;            prescaler = 4;</div>
<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>&#160;            mult = 1;</div>
<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>&#160;        }</div>
<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 320 * min_level)</div>
<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>&#160;        { <span class="comment">// 16*20</span></div>
<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>&#160;            prescaler = 4;</div>
<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>&#160;            mult = 2;</div>
<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>&#160;        }</div>
<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 640 * min_level)</div>
<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>&#160;        { <span class="comment">// 16*40</span></div>
<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>&#160;            prescaler = 4;</div>
<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>&#160;            mult = 3;</div>
<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>&#160;        }</div>
<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 1280 * min_level)</div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>&#160;        { <span class="comment">// 32*40</span></div>
<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span>&#160;            prescaler = 5;</div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>&#160;            mult = 3;</div>
<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>&#160;        }</div>
<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 2560 * min_level)</div>
<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>&#160;        { <span class="comment">// 64*40</span></div>
<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>&#160;            prescaler = 6;</div>
<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>&#160;            mult = 3;</div>
<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>&#160;        }</div>
<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mod &lt; 5120 * min_level)</div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>&#160;        { <span class="comment">// 128*40</span></div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>&#160;            prescaler = 7;</div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>&#160;            mult = 3;</div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>&#160;        }</div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>&#160;        { <span class="comment">// frequency too low</span></div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>&#160;        }</div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>&#160; </div>
<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>&#160;        mod &gt;&gt;= prescaler;</div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>&#160;        <span class="keywordflow">if</span> (mult &gt; 0)</div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>&#160;        {</div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>&#160;            mod /= 10;</div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>&#160;            mod &gt;&gt;= (mult - 1);</div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>&#160;        }</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>&#160;    }</div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>&#160; </div>
<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>&#160;    <a class="code" href="class_a_d_c___module.html#aa5f004d8433dc5968af0ec7f17b1f576">setHardwareTrigger</a>(); <span class="comment">// trigger ADC with hardware</span></div>
<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>&#160; </div>
<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>&#160;    <span class="comment">//                                   software trigger    enable PDB     PDB interrupt  continuous mode load immediately</span></div>
<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>&#160;    constexpr uint32_t ADC_PDB_CONFIG = PDB_SC_TRGSEL(15) | PDB_SC_PDBEN | PDB_SC_PDBIE | PDB_SC_CONT | PDB_SC_LDMOD(0);</div>
<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>&#160; </div>
<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>&#160;    constexpr uint32_t PDB_CHnC1_TOS_1 = 0x0100;</div>
<div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>&#160;    constexpr uint32_t PDB_CHnC1_EN_1 = 0x01;</div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>&#160; </div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>&#160;    PDB0_IDLY = 1; <span class="comment">// the pdb interrupt happens when IDLY is equal to CNT+1</span></div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>&#160; </div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>&#160;    PDB0_MOD = (uint16_t)(mod - 1);</div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>&#160; </div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>&#160;    PDB0_SC = ADC_PDB_CONFIG | PDB_SC_PRESCALER(prescaler) | PDB_SC_MULT(mult) | PDB_SC_LDOK; <span class="comment">// load all new values</span></div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>&#160; </div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>&#160;    PDB0_SC = ADC_PDB_CONFIG | PDB_SC_PRESCALER(prescaler) | PDB_SC_MULT(mult) | PDB_SC_SWTRIG; <span class="comment">// start the counter!</span></div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>&#160; </div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>&#160;    PDB0_CHnC1 = PDB_CHnC1_TOS_1 | PDB_CHnC1_EN_1; <span class="comment">// enable pretrigger 0 (SC1A)</span></div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>&#160; </div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>&#160;    <span class="comment">//NVIC_ENABLE_IRQ(IRQ_PDB);</span></div>
<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>&#160;}</div>
<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>&#160; </div>
<div class="line"><a name="l01587"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ab25eb12b50ef1002100ac6cd865cc6dc"> 1587</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_a_d_c___module.html#ab25eb12b50ef1002100ac6cd865cc6dc">ADC_Module::stopPDB</a>()</div>
<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>&#160;{</div>
<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>&#160;    <span class="keywordflow">if</span> (!(SIM_SCGC6 &amp; SIM_SCGC6_PDB))</div>
<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>&#160;    { <span class="comment">// if PDB clock wasn&#39;t on, return</span></div>
<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>&#160;        <a class="code" href="class_a_d_c___module.html#a4f8137bfcdc459b4f8767ad46f325af6">setSoftwareTrigger</a>();</div>
<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>&#160;    }</div>
<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>&#160;    PDB0_SC = 0;</div>
<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>&#160;    <a class="code" href="class_a_d_c___module.html#a4f8137bfcdc459b4f8767ad46f325af6">setSoftwareTrigger</a>();</div>
<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>&#160; </div>
<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>&#160;    <span class="comment">//NVIC_DISABLE_IRQ(IRQ_PDB);</span></div>
<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>&#160;}</div>
<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>&#160; </div>
<div class="line"><a name="l01601"></a><span class="lineno"><a class="line" href="class_a_d_c___module.html#ae113f4168d9dd343f66ecc6e59a245f6"> 1601</a></span>&#160;uint32_t <a class="code" href="class_a_d_c___module.html#ae113f4168d9dd343f66ecc6e59a245f6">ADC_Module::getPDBFrequency</a>()</div>
<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>&#160;{</div>
<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>&#160;    <span class="keyword">const</span> uint32_t mod = (uint32_t)PDB0_MOD;</div>
<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>&#160;    <span class="keyword">const</span> uint8_t prescaler = (PDB0_SC &amp; 0x7000) &gt;&gt; 12;</div>
<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>&#160;    <span class="keyword">const</span> uint8_t mult = (PDB0_SC &amp; 0xC) &gt;&gt; 2;</div>
<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>&#160; </div>
<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>&#160;    <span class="keyword">const</span> uint32_t freq = uint32_t((mod + 1) &lt;&lt; (prescaler)) * uint32_t((mult == 0) ? 1 : 10 &lt;&lt; (mult - 1));</div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>&#160;    <span class="keywordflow">return</span> ADC_F_BUS / freq;</div>
<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>&#160;}</div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>&#160; </div>
<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>&#160; </div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>&#160;<span class="preprocessor">#ifdef ADC_USE_QUAD_TIMER</span></div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>&#160;<span class="comment">// TODO: Add support for Teensy 3.x Quad timer</span></div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>&#160;<span class="preprocessor">#if defined(ADC_TEENSY_4) // only supported by Teensy 4...</span></div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>&#160;<span class="comment">// try to use some teensy core functions...</span></div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>&#160;<span class="comment">// mainly out of pwm.c</span></div>
<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>&#160;<span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span></div>
<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>&#160;{</div>
<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>&#160;    <span class="keyword">extern</span> <span class="keywordtype">void</span> xbar_connect(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> input, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> output);</div>
<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>&#160;    <span class="keyword">extern</span> <span class="keywordtype">void</span> quadtimer_init(IMXRT_TMR_t *p);</div>
<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>&#160;    <span class="keyword">extern</span> <span class="keywordtype">void</span> quadtimerWrite(IMXRT_TMR_t *p, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> submodule, uint16_t val);</div>
<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>&#160;    <span class="keyword">extern</span> <span class="keywordtype">void</span> quadtimerFrequency(IMXRT_TMR_t *p, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> submodule, <span class="keywordtype">float</span> frequency);</div>
<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>&#160;}</div>
<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>&#160; </div>
<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>&#160;<span class="keywordtype">void</span> ADC_Module::startQuadTimer(uint32_t freq)</div>
<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>&#160;{</div>
<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>&#160;    <span class="comment">// First lets setup the XBAR</span></div>
<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>&#160;    CCM_CCGR2 |= CCM_CCGR2_XBAR1(CCM_CCGR_ON); <span class="comment">//turn clock on for xbara1</span></div>
<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>&#160;    xbar_connect(XBAR_IN, XBAR_OUT);</div>
<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>&#160; </div>
<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>&#160;    <span class="comment">// Update the ADC</span></div>
<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>&#160;    uint8_t adc_pin_channel = adc_regs.HC0 &amp; 0x1f; <span class="comment">// remember the trigger that was set</span></div>
<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>&#160;    <a class="code" href="class_a_d_c___module.html#aa5f004d8433dc5968af0ec7f17b1f576">setHardwareTrigger</a>();                          <span class="comment">// set the hardware trigger</span></div>
<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>&#160;    adc_regs.HC0 = (adc_regs.HC0 &amp; ~0x1f) | 16;    <span class="comment">// ADC_ETC channel remember other states...</span></div>
<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>&#160;    <a class="code" href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">singleMode</a>();                                  <span class="comment">// make sure continuous is turned off as you want the trigger to di it.</span></div>
<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>&#160; </div>
<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>&#160;    <span class="comment">// setup adc_etc - BUGBUG have not used the preset values yet.</span></div>
<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>&#160;    <span class="keywordflow">if</span> (IMXRT_ADC_ETC.CTRL &amp; ADC_ETC_CTRL_SOFTRST)</div>
<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>&#160;    { <span class="comment">// SOFTRST</span></div>
<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>&#160;        <span class="comment">// Soft reset</span></div>
<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>&#160;        atomic::clearBitFlag(IMXRT_ADC_ETC.CTRL, ADC_ETC_CTRL_SOFTRST);</div>
<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>&#160;        delay(5); <span class="comment">// give some time to be sure it is init</span></div>
<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>&#160;    }</div>
<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="class_a_d_c___module.html#a29c327df90f71838a36efd3c3b68dd8c">ADC_num</a> == 0)</div>
<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>&#160;    { <span class="comment">// BUGBUG - in real code, should probably know we init ADC or not..</span></div>
<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>&#160;        IMXRT_ADC_ETC.CTRL |=</div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>&#160;            (ADC_ETC_CTRL_TSC_BYPASS | ADC_ETC_CTRL_DMA_MODE_SEL | ADC_ETC_CTRL_TRIG_ENABLE(1 &lt;&lt; ADC_ETC_TRIGGER_INDEX)); <span class="comment">// 0x40000001;  // start with trigger 0</span></div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>&#160;        IMXRT_ADC_ETC.TRIG[ADC_ETC_TRIGGER_INDEX].CTRL = ADC_ETC_TRIG_CTRL_TRIG_CHAIN(0);                                 <span class="comment">// chainlength -1 only us</span></div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>&#160;        IMXRT_ADC_ETC.TRIG[ADC_ETC_TRIGGER_INDEX].CHAIN_1_0 =</div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>&#160;            ADC_ETC_TRIG_CHAIN_IE0(1) <span class="comment">/*| ADC_ETC_TRIG_CHAIN_B2B0 */</span></div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>&#160;            | ADC_ETC_TRIG_CHAIN_HWTS0(1) | ADC_ETC_TRIG_CHAIN_CSEL0(adc_pin_channel);</div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>&#160; </div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>&#160;        <span class="keywordflow">if</span> (interrupts_enabled)</div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>&#160;        {</div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>&#160;            <span class="comment">// Not sure yet?</span></div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>&#160;        }</div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>&#160;        <span class="keywordflow">if</span> (adc_regs.GC &amp; ADC_GC_DMAEN)</div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>&#160;        {</div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>&#160;            IMXRT_ADC_ETC.DMA_CTRL |= ADC_ETC_DMA_CTRL_TRIQ_ENABLE(ADC_ETC_TRIGGER_INDEX);</div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>&#160;        }</div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>&#160;    }</div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>&#160;    {</div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>&#160;        <span class="comment">// This is our second one... Try second trigger?</span></div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>&#160;        <span class="comment">// Remove the BYPASS?</span></div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>&#160;        IMXRT_ADC_ETC.CTRL &amp;= ~(ADC_ETC_CTRL_TSC_BYPASS);                                                       <span class="comment">// 0x40000001;  // start with trigger 0</span></div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>&#160;        IMXRT_ADC_ETC.CTRL |= ADC_ETC_CTRL_DMA_MODE_SEL | ADC_ETC_CTRL_TRIG_ENABLE(1 &lt;&lt; ADC_ETC_TRIGGER_INDEX); <span class="comment">// Add trigger</span></div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>&#160;        IMXRT_ADC_ETC.TRIG[ADC_ETC_TRIGGER_INDEX].CTRL = ADC_ETC_TRIG_CTRL_TRIG_CHAIN(0);                       <span class="comment">// chainlength -1 only us</span></div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>&#160;        IMXRT_ADC_ETC.TRIG[ADC_ETC_TRIGGER_INDEX].CHAIN_1_0 =</div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>&#160;            ADC_ETC_TRIG_CHAIN_IE0(1) <span class="comment">/*| ADC_ETC_TRIG_CHAIN_B2B0 */</span></div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>&#160;            | ADC_ETC_TRIG_CHAIN_HWTS0(1) | ADC_ETC_TRIG_CHAIN_CSEL0(adc_pin_channel);</div>
<div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>&#160; </div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>&#160;        <span class="keywordflow">if</span> (adc_regs.GC &amp; ADC_GC_DMAEN)</div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>&#160;        {</div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>&#160;            IMXRT_ADC_ETC.DMA_CTRL |= ADC_ETC_DMA_CTRL_TRIQ_ENABLE(ADC_ETC_TRIGGER_INDEX);</div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>&#160;        }</div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>&#160;    }</div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>&#160; </div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>&#160;    <span class="comment">// Now init the QTimer.</span></div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>&#160;    <span class="comment">// Extracted from quadtimer_init in pwm.c but only the one channel...</span></div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>&#160;    <span class="comment">// Maybe see if we have to do this every time we call this.  But how often is that?</span></div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].CTRL = 0; <span class="comment">// stop timer</span></div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].CNTR = 0;</div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].SCTRL = TMR_SCTRL_OEN | TMR_SCTRL_OPS | TMR_SCTRL_VAL | TMR_SCTRL_FORCE;</div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].CSCTRL = TMR_CSCTRL_CL1(1) | TMR_CSCTRL_ALT_LOAD;</div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>&#160;    <span class="comment">// COMP must be less than LOAD - otherwise output is always low</span></div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].LOAD = 24000; <span class="comment">// low time  (65537 - x) -</span></div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].COMP1 = 0;    <span class="comment">// high time (0 = always low, max = LOAD-1)</span></div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].CMPLD1 = 0;</div>
<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>&#160;    IMXRT_TMR4.CH[QTIMER4_INDEX].CTRL = TMR_CTRL_CM(1) | TMR_CTRL_PCS(8) |</div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>&#160;                                        TMR_CTRL_LENGTH | TMR_CTRL_OUTMODE(6);</div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>&#160; </div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>&#160;    quadtimerFrequency(&amp;IMXRT_TMR4, QTIMER4_INDEX, freq);</div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>&#160;    quadtimerWrite(&amp;IMXRT_TMR4, QTIMER4_INDEX, 5);</div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>&#160;}</div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>&#160; </div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>&#160;<span class="keywordtype">void</span> ADC_Module::stopQuadTimer()</div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>&#160;{</div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>&#160;    quadtimerWrite(&amp;IMXRT_TMR4, QTIMER4_INDEX, 0);</div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>&#160;    <a class="code" href="class_a_d_c___module.html#a4f8137bfcdc459b4f8767ad46f325af6">setSoftwareTrigger</a>();</div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>&#160;}</div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>&#160; </div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>&#160;uint32_t ADC_Module::getQuadTimerFrequency()</div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>&#160;{</div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>&#160;    <span class="comment">// Can I reverse the calculations of quad timer set frequency?</span></div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>&#160;    uint32_t high = IMXRT_TMR4.CH[QTIMER4_INDEX].CMPLD1;</div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>&#160;    uint32_t low = 65537 - IMXRT_TMR4.CH[QTIMER4_INDEX].LOAD;</div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>&#160;    uint32_t highPlusLow = high + low; <span class="comment">//</span></div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>&#160;    <span class="keywordflow">if</span> (highPlusLow == 0)</div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>&#160;        <span class="keywordflow">return</span> 0; <span class="comment">//</span></div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>&#160; </div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>&#160;    uint8_t pcs = (IMXRT_TMR4.CH[QTIMER4_INDEX].CTRL &gt;&gt; 9) &amp; 0x7;</div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>&#160;    uint32_t freq = (F_BUS_ACTUAL &gt;&gt; pcs) / highPlusLow;</div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>&#160;    <span class="comment">//Serial.printf(&quot;ADC_Module::getTimerFrequency H:%u L:%u H+L=%u pcs:%u freq:%u\n&quot;, high, low, highPlusLow, pcs, freq);</span></div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>&#160;    <span class="keywordflow">return</span> freq;</div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>&#160;}</div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>&#160; </div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>&#160;<span class="preprocessor">#endif // Teensy 4</span></div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>&#160;<span class="preprocessor">#endif // ADC_USE_QUAD_TIMER</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aclass_a_d_c___module_html_afcb1d826e94dad49e376bf3fe0334c39"><div class="ttname"><a href="class_a_d_c___module.html#afcb1d826e94dad49e376bf3fe0334c39">ADC_Module::adc_config</a></div><div class="ttdeci">struct ADC_Module::ADC_Config adc_config</div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a1bb50f669bbc41937fb5157abe2050ca"><div class="ttname"><a href="class_a_d_c___module.html#a1bb50f669bbc41937fb5157abe2050ca">ADC_Module::loadConfig</a></div><div class="ttdeci">void loadConfig(const ADC_Config *config)</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00714">ADC_Module.h:714</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a4f8137bfcdc459b4f8767ad46f325af6"><div class="ttname"><a href="class_a_d_c___module.html#a4f8137bfcdc459b4f8767ad46f325af6">ADC_Module::setSoftwareTrigger</a></div><div class="ttdeci">void setSoftwareTrigger()</div><div class="ttdoc">Use software to trigger the ADC, this is the most common setting.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00294">ADC_Module.h:294</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_af3d14c01b1442c0c34b5dbc9a6e49f35"><div class="ttname"><a href="class_a_d_c___module.html#af3d14c01b1442c0c34b5dbc9a6e49f35">ADC_Module::enableDMA</a></div><div class="ttdeci">void enableDMA()</div><div class="ttdoc">Enable DMA request.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00764">ADC_Module.cpp:764</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_aa4509062644982526fee3c02e0b528fc"><div class="ttname"><a href="class_a_d_c___module.html#aa4509062644982526fee3c02e0b528fc">ADC_Module::disableInterrupts</a></div><div class="ttdeci">void disableInterrupts()</div><div class="ttdoc">Disable interrupts.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00747">ADC_Module.cpp:747</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a6bd8da02e5e9bd3b2b3db30d5faa3585"><div class="ttname"><a href="class_a_d_c___module.html#a6bd8da02e5e9bd3b2b3db30d5faa3585">ADC_Module::setResolution</a></div><div class="ttdeci">void setResolution(uint8_t bits)</div><div class="ttdoc">Change the resolution of the measurement.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00312">ADC_Module.cpp:312</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a80d29662a1a32a51fec606351685ebaf"><div class="ttname"><a href="class_a_d_c___module.html#a80d29662a1a32a51fec606351685ebaf">ADC_Module::checkDifferentialPins</a></div><div class="ttdeci">bool checkDifferentialPins(uint8_t pinP, uint8_t pinN)</div><div class="ttdoc">Check whether the pins are a valid analog differential pair of pins.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00991">ADC_Module.cpp:991</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_af2ee5bc5b76647506e597c178c9691d3"><div class="ttname"><a href="class_a_d_c___module.html#af2ee5bc5b76647506e597c178c9691d3">ADC_Module::saveConfig</a></div><div class="ttdeci">void saveConfig(ADC_Config *config)</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00696">ADC_Module.h:696</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a9fd95a61d263a9d82918b50e81aee2e9"><div class="ttname"><a href="class_a_d_c___module.html#a9fd95a61d263a9d82918b50e81aee2e9">ADC_Module::checkPin</a></div><div class="ttdeci">bool checkPin(uint8_t pin)</div><div class="ttdoc">Check whether the pin is a valid analog pin.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00969">ADC_Module.cpp:969</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ac635f675a9690a4db016c73c31818262"><div class="ttname"><a href="class_a_d_c___module.html#ac635f675a9690a4db016c73c31818262">ADC_Module::disableCompare</a></div><div class="ttdeci">void disableCompare()</div><div class="ttdoc">Disable the compare function.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00893">ADC_Module.cpp:893</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a"><div class="ttname"><a href="class_a_d_c___module.html#a4fb69b5b2d07c3fc8f5f0bbbf05dfa2a">ADC_Module::wait_for_cal</a></div><div class="ttdeci">void wait_for_cal()</div><div class="ttdoc">Waits until calibration is finished and writes the corresponding registers.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00178">ADC_Module.cpp:178</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a281b4f6ca2705f934bc86b1a25679138"><div class="ttname"><a href="class_a_d_c___module.html#a281b4f6ca2705f934bc86b1a25679138">ADC_Module::setConversionSpeed</a></div><div class="ttdeci">void setConversionSpeed(ADC_CONVERSION_SPEED speed)</div><div class="ttdoc">Sets the conversion speed (changes the ADC clock, ADCK)</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00431">ADC_Module.cpp:431</a></div></div>
<div class="ttc" id="astruct_a_d_c___module_1_1_a_d_c___config_html"><div class="ttname"><a href="struct_a_d_c___module_1_1_a_d_c___config.html">ADC_Module::ADC_Config</a></div><div class="ttdoc">Store the config of the adc.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00675">ADC_Module.h:675</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_aa5f004d8433dc5968af0ec7f17b1f576"><div class="ttname"><a href="class_a_d_c___module.html#aa5f004d8433dc5968af0ec7f17b1f576">ADC_Module::setHardwareTrigger</a></div><div class="ttdeci">void setHardwareTrigger()</div><div class="ttdoc">Use hardware to trigger the ADC.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00303">ADC_Module.h:303</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_af8a13facb0c15ef14e527a37f2386ce5"><div class="ttname"><a href="class_a_d_c___module.html#af8a13facb0c15ef14e527a37f2386ce5">ADC_Module::startSingleRead</a></div><div class="ttdeci">bool startSingleRead(uint8_t pin)</div><div class="ttdoc">Starts an analog measurement on the pin. It returns immediately, get value with readSingle()....</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01277">ADC_Module.cpp:1277</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a60d0edc82fd1dbb2e20d090a53718ce2"><div class="ttname"><a href="class_a_d_c___module.html#a60d0edc82fd1dbb2e20d090a53718ce2">ADC_Module::readSingle</a></div><div class="ttdeci">int readSingle()</div><div class="ttdoc">Reads the analog value of a single conversion. Set the conversion with with startSingleRead(uint8_t p...</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00517">ADC_Module.h:517</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a8b00e0669bbc7917544d4e2e543f1a27"><div class="ttname"><a href="class_a_d_c___module.html#a8b00e0669bbc7917544d4e2e543f1a27">ADC_Module::continuousMode</a></div><div class="ttdeci">void continuousMode()</div><div class="ttdoc">Set continuous conversion mode.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00262">ADC_Module.h:262</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ab25eb12b50ef1002100ac6cd865cc6dc"><div class="ttname"><a href="class_a_d_c___module.html#ab25eb12b50ef1002100ac6cd865cc6dc">ADC_Module::stopPDB</a></div><div class="ttdeci">void stopPDB()</div><div class="ttdoc">Stop the PDB.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01587">ADC_Module.cpp:1587</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a29c327df90f71838a36efd3c3b68dd8c"><div class="ttname"><a href="class_a_d_c___module.html#a29c327df90f71838a36efd3c3b68dd8c">ADC_Module::ADC_num</a></div><div class="ttdeci">const uint8_t ADC_num</div><div class="ttdoc">Which adc is this?</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00742">ADC_Module.h:742</a></div></div>
<div class="ttc" id="anamespace_a_d_c__settings_html_af0d80a1aae7288f77b13f0e01d9da0d3"><div class="ttname"><a href="namespace_a_d_c__settings.html#af0d80a1aae7288f77b13f0e01d9da0d3">ADC_settings::ADC_SAMPLING_SPEED</a></div><div class="ttdeci">ADC_SAMPLING_SPEED</div><div class="ttdoc">ADC sampling speed. It selects how many ADCK clock cycles to add.</div><div class="ttdef"><b>Definition:</b> <a href="settings__defines_8h_source.html#l00603">settings_defines.h:603</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a33cc7fbfcb158a33e8ca276cc7b309b5"><div class="ttname"><a href="class_a_d_c___module.html#a33cc7fbfcb158a33e8ca276cc7b309b5">ADC_Module::startReadFast</a></div><div class="ttdeci">void startReadFast(uint8_t pin)</div><div class="ttdoc">Starts a single-ended conversion on the pin.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01032">ADC_Module.cpp:1032</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a2aa4693c5be479f3189d31f59d212509"><div class="ttname"><a href="class_a_d_c___module.html#a2aa4693c5be479f3189d31f59d212509">ADC_Module::setSamplingSpeed</a></div><div class="ttdeci">void setSamplingSpeed(ADC_SAMPLING_SPEED speed)</div><div class="ttdoc">Sets the sampling speed.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00583">ADC_Module.cpp:583</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_af3704819ccda64bae9c13a95a74e70a8"><div class="ttname"><a href="class_a_d_c___module.html#af3704819ccda64bae9c13a95a74e70a8">ADC_Module::getMaxValue</a></div><div class="ttdeci">uint32_t getMaxValue()</div><div class="ttdoc">Returns the maximum value for a measurement: 2^res-1.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00416">ADC_Module.cpp:416</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ab8e64bab9d4e7f1935a260629e5d71d5"><div class="ttname"><a href="class_a_d_c___module.html#ab8e64bab9d4e7f1935a260629e5d71d5">ADC_Module::enableCompareRange</a></div><div class="ttdeci">void enableCompareRange(int16_t lowerLimit, int16_t upperLimit, bool insideRange, bool inclusive)</div><div class="ttdoc">Enable the compare function to a range.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00824">ADC_Module.cpp:824</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a27fdc83a7dbe3a8c8c24fc4273414256"><div class="ttname"><a href="class_a_d_c___module.html#a27fdc83a7dbe3a8c8c24fc4273414256">ADC_Module::num_measurements</a></div><div class="ttdeci">uint8_t num_measurements</div><div class="ttdoc">Number of measurements that the ADC is performing.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00730">ADC_Module.h:730</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a58cabc09d41f6aa25319fd514b47c48f"><div class="ttname"><a href="class_a_d_c___module.html#a58cabc09d41f6aa25319fd514b47c48f">ADC_Module::getResolution</a></div><div class="ttdeci">uint8_t getResolution()</div><div class="ttdoc">Returns the resolution of the ADC_Module.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00408">ADC_Module.cpp:408</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a9af29f865bdd376d954112d36b0992f0"><div class="ttname"><a href="class_a_d_c___module.html#a9af29f865bdd376d954112d36b0992f0">ADC_Module::stopContinuous</a></div><div class="ttdeci">void stopContinuous()</div><div class="ttdoc">Stops continuous conversion.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01435">ADC_Module.cpp:1435</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a55954618c5c27c1ffce4321e912bac52"><div class="ttname"><a href="class_a_d_c___module.html#a55954618c5c27c1ffce4321e912bac52">ADC_Module::setAveraging</a></div><div class="ttdeci">void setAveraging(uint8_t num)</div><div class="ttdoc">Set the number of averages.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00651">ADC_Module.cpp:651</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a65395dfc2a15bc015e1ee723b22235b5"><div class="ttname"><a href="class_a_d_c___module.html#a65395dfc2a15bc015e1ee723b22235b5">ADC_Module::enableInterrupts</a></div><div class="ttdeci">void enableInterrupts(void(*isr)(void), uint8_t priority=255)</div><div class="ttdoc">Enable interrupts.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00726">ADC_Module.cpp:726</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a3aefadc245d1582d3ae97e1b9c7acac8"><div class="ttname"><a href="class_a_d_c___module.html#a3aefadc245d1582d3ae97e1b9c7acac8">ADC_Module::isComplete</a></div><div class="ttdeci">volatile bool isComplete()</div><div class="ttdoc">Is an ADC conversion ready?</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00340">ADC_Module.h:340</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_afe8ed6f2a6c811ec3ef2c4aba768982f"><div class="ttname"><a href="class_a_d_c___module.html#afe8ed6f2a6c811ec3ef2c4aba768982f">ADC_Module::recalibrate</a></div><div class="ttdeci">void recalibrate()</div><div class="ttdoc">Starts the calibration sequence, waits until it's done and writes the results.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00244">ADC_Module.cpp:244</a></div></div>
<div class="ttc" id="anamespace_a_d_c__settings_html_a5f42fd9e070e88475ec7cee39bbf4f8d"><div class="ttname"><a href="namespace_a_d_c__settings.html#a5f42fd9e070e88475ec7cee39bbf4f8d">ADC_settings::ADC_REFERENCE</a></div><div class="ttdeci">ADC_REFERENCE</div><div class="ttdoc">Voltage reference for the ADC default is the external, that is connected to the 3....</div><div class="ttdef"><b>Definition:</b> <a href="settings__defines_8h_source.html#l00178">settings_defines.h:178</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ac1ebe515d43edd360286c3a3a44db5b8"><div class="ttname"><a href="class_a_d_c___module.html#ac1ebe515d43edd360286c3a3a44db5b8">ADC_Module::ADC_Module</a></div><div class="ttdeci">ADC_Module(uint8_t ADC_number, const uint8_t *const a_channel2sc1a, const ADC_NLIST *const a_diff_table, ADC_REGS_t &amp;a_adc_regs)</div><div class="ttdoc">Pass the ADC number and the Channel number to SC1A number arrays.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00042">ADC_Module.cpp:42</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a784d946712d1d0ee475822b7b8f99ace"><div class="ttname"><a href="class_a_d_c___module.html#a784d946712d1d0ee475822b7b8f99ace">ADC_Module::setReference</a></div><div class="ttdeci">void setReference(ADC_REFERENCE ref_type)</div><div class="ttdoc">Set the voltage reference you prefer, default is vcc.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00258">ADC_Module.cpp:258</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a4a57f6a9b0e3884f3862062b33f1a447"><div class="ttname"><a href="class_a_d_c___module.html#a4a57f6a9b0e3884f3862062b33f1a447">ADC_Module::analogReadDifferential</a></div><div class="ttdeci">int analogReadDifferential(uint8_t pinP, uint8_t pinN)</div><div class="ttdoc">Reads the differential analog value of two pins (pinP - pinN).</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01185">ADC_Module.cpp:1185</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ae7a632267f21b79c31c1dae56b5da188"><div class="ttname"><a href="class_a_d_c___module.html#ae7a632267f21b79c31c1dae56b5da188">ADC_Module::enableCompare</a></div><div class="ttdeci">void enableCompare(int16_t compValue, bool greaterThan)</div><div class="ttdoc">Enable the compare function to a single value.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00798">ADC_Module.cpp:798</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a34f6f7878889aa3644b279f9440dc0bf"><div class="ttname"><a href="class_a_d_c___module.html#a34f6f7878889aa3644b279f9440dc0bf">ADC_Module::adcWasInUse</a></div><div class="ttdeci">uint8_t adcWasInUse</div><div class="ttdoc">Was the adc in use before a call?</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00691">ADC_Module.h:691</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a037ab0589e2966cd07292c8186cad83e"><div class="ttname"><a href="class_a_d_c___module.html#a037ab0589e2966cd07292c8186cad83e">ADC_Module::calibrate</a></div><div class="ttdeci">void calibrate()</div><div class="ttdoc">Starts the calibration sequence.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00153">ADC_Module.cpp:153</a></div></div>
<div class="ttc" id="anamespace_v_r_e_f_html_ac667e62e25fd2c9325f73dd0c6a6a3e8"><div class="ttname"><a href="namespace_v_r_e_f.html#ac667e62e25fd2c9325f73dd0c6a6a3e8">VREF::stop</a></div><div class="ttdeci">void stop()</div><div class="ttdoc">Stops the internal reference.</div><div class="ttdef"><b>Definition:</b> <a href="_v_r_e_f_8h_source.html#l00088">VREF.h:88</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a2b6284a613c9d3e452d2fc708bf6ce98"><div class="ttname"><a href="class_a_d_c___module.html#a2b6284a613c9d3e452d2fc708bf6ce98">ADC_Module::startContinuous</a></div><div class="ttdeci">bool startContinuous(uint8_t pin)</div><div class="ttdoc">Starts continuous conversion on the pin.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01365">ADC_Module.cpp:1365</a></div></div>
<div class="ttc" id="anamespace_a_d_c__settings_html_aab853fc1fcb1992fd5d51408adf7688e"><div class="ttname"><a href="namespace_a_d_c__settings.html#aab853fc1fcb1992fd5d51408adf7688e">ADC_settings::ADC_CONVERSION_SPEED</a></div><div class="ttdeci">ADC_CONVERSION_SPEED</div><div class="ttdoc">ADC conversion speed. Common set of options to select the ADC clock speed F_ADCK, which depends on AD...</div><div class="ttdef"><b>Definition:</b> <a href="settings__defines_8h_source.html#l00562">settings_defines.h:562</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ad492adad4a9fa728625be82602bf1672"><div class="ttname"><a href="class_a_d_c___module.html#ad492adad4a9fa728625be82602bf1672">ADC_Module::analogRead</a></div><div class="ttdeci">int analogRead(uint8_t pin)</div><div class="ttdoc">Returns the analog value of the pin.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01104">ADC_Module.cpp:1104</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ae113f4168d9dd343f66ecc6e59a245f6"><div class="ttname"><a href="class_a_d_c___module.html#ae113f4168d9dd343f66ecc6e59a245f6">ADC_Module::getPDBFrequency</a></div><div class="ttdeci">uint32_t getPDBFrequency()</div><div class="ttdoc">Return the PDB's frequency.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01601">ADC_Module.cpp:1601</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_abe85ed1855a09f18c5d2026cf08968a7"><div class="ttname"><a href="class_a_d_c___module.html#abe85ed1855a09f18c5d2026cf08968a7">ADC_Module::startSingleDifferential</a></div><div class="ttdeci">bool startSingleDifferential(uint8_t pinP, uint8_t pinN)</div><div class="ttdoc">Start a differential conversion between two pins (pinP - pinN) It returns immediately,...</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01316">ADC_Module.cpp:1316</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_acced2e2266868323ff2c53df96791a15"><div class="ttname"><a href="class_a_d_c___module.html#acced2e2266868323ff2c53df96791a15">ADC_Module::startPDB</a></div><div class="ttdeci">void startPDB(uint32_t freq)</div><div class="ttdoc">Start PDB triggering the ADC at the frequency.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01460">ADC_Module.cpp:1460</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a23fd4fa6b759dcc0c029b3266f6a5fb7"><div class="ttname"><a href="class_a_d_c___module.html#a23fd4fa6b759dcc0c029b3266f6a5fb7">ADC_Module::startContinuousDifferential</a></div><div class="ttdeci">bool startContinuousDifferential(uint8_t pinP, uint8_t pinN)</div><div class="ttdoc">Starts continuous conversion between the pins (pinP-pinN).</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01395">ADC_Module.cpp:1395</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_ac1610dcab46476f287c2dd4d96465c47"><div class="ttname"><a href="class_a_d_c___module.html#ac1610dcab46476f287c2dd4d96465c47">ADC_Module::disableDMA</a></div><div class="ttdeci">void disableDMA()</div><div class="ttdoc">Disable ADC DMA request.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l00781">ADC_Module.cpp:781</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_aa503b484e691fe31172033fc928576bd"><div class="ttname"><a href="class_a_d_c___module.html#aa503b484e691fe31172033fc928576bd">ADC_Module::startDifferentialFast</a></div><div class="ttdeci">void startDifferentialFast(uint8_t pinP, uint8_t pinN)</div><div class="ttdoc">Starts a differential conversion on the pair of pins.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8cpp_source.html#l01065">ADC_Module.cpp:1065</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a2d0cc3360073881658e578faf4ae5632"><div class="ttname"><a href="class_a_d_c___module.html#a2d0cc3360073881658e578faf4ae5632">ADC_Module::fail_flag</a></div><div class="ttdeci">volatile ADC_ERROR fail_flag</div><div class="ttdoc">This flag indicates that some kind of error took place.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00736">ADC_Module.h:736</a></div></div>
<div class="ttc" id="anamespace_v_r_e_f_html_a569b07fd4d9cba8e5c6cb170b952c7ef"><div class="ttname"><a href="namespace_v_r_e_f.html#a569b07fd4d9cba8e5c6cb170b952c7ef">VREF::start</a></div><div class="ttdeci">void start(uint8_t mode=VREF_SC_MODE_LV_HIGHPOWERBUF, uint8_t trim=0x20)</div><div class="ttdoc">Start the 1.2V internal reference (if present) This is called automatically by ADC_Module::setReferen...</div><div class="ttdef"><b>Definition:</b> <a href="_v_r_e_f_8h_source.html#l00056">VREF.h:56</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a0f7d83ced9a5159b1f25bd998cea2bd0"><div class="ttname"><a href="class_a_d_c___module.html#a0f7d83ced9a5159b1f25bd998cea2bd0">ADC_Module::singleMode</a></div><div class="ttdeci">void singleMode()</div><div class="ttdoc">Set single-shot conversion mode.</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00270">ADC_Module.h:270</a></div></div>
<div class="ttc" id="aclass_a_d_c___module_html_a9facd614ff4fec667341d9109f098f0f"><div class="ttname"><a href="class_a_d_c___module.html#a9facd614ff4fec667341d9109f098f0f">ADC_Module::isConverting</a></div><div class="ttdeci">volatile bool isConverting()</div><div class="ttdoc">Is the ADC converting at the moment?</div><div class="ttdef"><b>Definition:</b> <a href="_a_d_c___module_8h_source.html#l00323">ADC_Module.h:323</a></div></div>
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